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Cochrane Database of Systematic Reviews

Tecnologías de reproducción asistida para la subfertilidad masculina

Información

DOI:
https://doi.org/10.1002/14651858.CD000360.pub5Copiar DOI
Base de datos:
  1. Cochrane Database of Systematic Reviews
Versión publicada:
  1. 26 febrero 2016see what's new
Tipo:
  1. Intervention
Etapa:
  1. Review
Grupo Editorial Cochrane:
  1. Grupo Cochrane de Ginecología y fertilidad

Copyright:
  1. Copyright © 2016 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

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Autores

  • Maartje Cissen

    Correspondencia a: Department of Obstetrics and Gynaecology, Jeroen Bosch Hospital, 's‐Hertogenbosch, Netherlands

    [email protected]

  • Alexandra Bensdorp

    Center for Reproductive Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands

  • Ben J Cohlen

    Department of Obstetrics & Gynaecology, Isala Clinics, Location Sophia, Zwolle, Netherlands

  • Sjoerd Repping

    Center for Reproductive Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands

  • Jan Peter de Bruin

    Department of Obstetrics and Gynaecology, Jeroen Bosch Hospital, 's‐Hertogenbosch, Netherlands

  • Madelon van Wely

    Center for Reproductive Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands

Contributions of authors

M Cissen: took the lead in rewriting the protocol. Performed the literature search, selected trials and performed data extraction and analysis. Wrote the review.

AJ Bensdorp: primary author of the previous publication of the review (Bensdorp 2007b). Assisted in rewriting the protocol.

BJ Cohlen: primary author of the first publication of the review (Cohlen 1998; Cohlen 2000). Substantial contribution writing update.

JP de Bruin: formulation of research question; substantial contribution writing update.

S Repping: formulation of research question; substantial contribution writing update.

M van Wely: helped in rewriting the protocol and writing the review. As the second review author, she selected trials and performed data extraction and analysis.

Sources of support

Internal sources

  • None, Other.

External sources

  • None, Other.

Declarations of interest

None known for any of the review authors.

Acknowledgements

Many special thanks to Marian Showell and the staff of the Cochrane Gynaecology and Fertility Group office for their support, performing the electronic searches and their valuable comments during the writing of this review. Thanks to Professor E. te Velde and Professor J.D.F. Habbema, who contributed to the first publication of the protocol (Cohlen 1998).

Version history

Published

Title

Stage

Authors

Version

2016 Feb 26

Assisted reproductive technologies for male subfertility

Review

Maartje Cissen, Alexandra Bensdorp, Ben J Cohlen, Sjoerd Repping, Jan Peter de Bruin, Madelon van Wely

https://doi.org/10.1002/14651858.CD000360.pub5

2007 Oct 17

Intra‐uterine insemination for male subfertility

Review

Alexandra Bensdorp, Ben J Cohlen, Maas Jan Heineman, Patrick Vanderkerchove

https://doi.org/10.1002/14651858.CD000360.pub4

2007 Jul 18

Intra‐uterine insemination for male subfertility

Review

Alexandra Bensdorp, Ben J Cohlen, Maas‐Jan J Heineman, Patrick Vandekerckhove

https://doi.org/10.1002/14651858.CD000360.pub3

2007 Jan 24

Timed intercourse versus intra‐uterine insemination with or without ovarian hyperstimulation for subfertility in men

Review

Ben J Cohlen, Patrick Vandekerckhove, E R te Velde, J DF Habbema, Alexandra Bensdorp, Maas‐Jan J Heineman

https://doi.org/10.1002/14651858.CD000360.pub2

1999 Apr 26

Timed intercourse versus intra‐uterine insemination with or without ovarian hyperstimulation for subfertility in men

Review

Ben J Cohlen, Patrick Vandekerckhove, E R te Velde, J DF Habbema, Egbert Te Velde

https://doi.org/10.1002/14651858.CD000360

Differences between protocol and review

None.

Keywords

MeSH

Medical Subject Headings Check Words

Female; Humans; Male; Pregnancy;

PICO

Population
Intervention
Comparison
Outcome

El uso y la enseñanza del modelo PICO están muy extendidos en el ámbito de la atención sanitaria basada en la evidencia para formular preguntas y estrategias de búsqueda y para caracterizar estudios o metanálisis clínicos. PICO son las siglas en inglés de cuatro posibles componentes de una pregunta de investigación: paciente, población o problema; intervención; comparación; desenlace (outcome).

Para saber más sobre el uso del modelo PICO, puede consultar el Manual Cochrane.

Study flow diagram.
Figuras y tablas -
Figure 1

Study flow diagram.

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.
Figuras y tablas -
Figure 2

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.
Figuras y tablas -
Figure 3

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.

Forest plot of comparison: 1 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in natural cycles (NC), outcome: 1.1 Pregnancy rate per couple (all cycles).
Figuras y tablas -
Figure 4

Forest plot of comparison: 1 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in natural cycles (NC), outcome: 1.1 Pregnancy rate per couple (all cycles).

Forest plot of comparison: 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), outcome: 2.3 Pregnancy rate per couple (all cycles).
Figuras y tablas -
Figure 5

Forest plot of comparison: 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), outcome: 2.3 Pregnancy rate per couple (all cycles).

Forest plot of comparison: 4 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus timed intercourse (TI) in natural cycles (NC), outcome: 4.2 Pregnancy rate per couple (all cycles).
Figuras y tablas -
Figure 6

Forest plot of comparison: 4 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus timed intercourse (TI) in natural cycles (NC), outcome: 4.2 Pregnancy rate per couple (all cycles).

Forest plot of comparison: 5 Intra‐uterine insemination (IUI) in natural cycles (NC) versus IUI in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC), outcome: 5.2 Pregnancy rate per couple (all cycles).
Figuras y tablas -
Figure 7

Forest plot of comparison: 5 Intra‐uterine insemination (IUI) in natural cycles (NC) versus IUI in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC), outcome: 5.2 Pregnancy rate per couple (all cycles).

Forest plot of comparison: 8 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in natural cycles (NC), outcome: 8.1 Live birth rate per couple (all cycles).
Figuras y tablas -
Figure 8

Forest plot of comparison: 8 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in natural cycles (NC), outcome: 8.1 Live birth rate per couple (all cycles).

Forest plot of comparison: 9 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH), outcome: 9.1 Live birth rate per couple (all cycles).
Figuras y tablas -
Figure 9

Forest plot of comparison: 9 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH), outcome: 9.1 Live birth rate per couple (all cycles).

Comparison 1 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in natural cycles (NC), Outcome 1 Pregnancy rate per couple (all cycles).
Figuras y tablas -
Analysis 1.1

Comparison 1 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in natural cycles (NC), Outcome 1 Pregnancy rate per couple (all cycles).

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 1 Live birth rate per couple (all cycles).
Figuras y tablas -
Analysis 2.1

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 1 Live birth rate per couple (all cycles).

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 2 OHSS per couple.
Figuras y tablas -
Analysis 2.2

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 2 OHSS per couple.

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 3 Pregnancy rate per couple (all cycles).
Figuras y tablas -
Analysis 2.3

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 3 Pregnancy rate per couple (all cycles).

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 4 Multiple pregnancy rate per couple.
Figuras y tablas -
Analysis 2.4

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 4 Multiple pregnancy rate per couple.

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 5 Miscarriage rate per couple.
Figuras y tablas -
Analysis 2.5

Comparison 2 Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH), Outcome 5 Miscarriage rate per couple.

Comparison 4 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus timed intercourse (TI) in natural cycles (NC), Outcome 1 Live birth rate per couple (all cycles).
Figuras y tablas -
Analysis 4.1

Comparison 4 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus timed intercourse (TI) in natural cycles (NC), Outcome 1 Live birth rate per couple (all cycles).

Comparison 4 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus timed intercourse (TI) in natural cycles (NC), Outcome 2 Pregnancy rate per couple (all cycles).
Figuras y tablas -
Analysis 4.2

Comparison 4 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus timed intercourse (TI) in natural cycles (NC), Outcome 2 Pregnancy rate per couple (all cycles).

Comparison 5 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC), Outcome 1 Live birth rate per couple (all cycles).
Figuras y tablas -
Analysis 5.1

Comparison 5 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC), Outcome 1 Live birth rate per couple (all cycles).

Comparison 5 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC), Outcome 2 Pregnancy rate per couple (all cycles).
Figuras y tablas -
Analysis 5.2

Comparison 5 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC), Outcome 2 Pregnancy rate per couple (all cycles).

Comparison 5 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC), Outcome 3 Miscarriage rate per couple.
Figuras y tablas -
Analysis 5.3

Comparison 5 Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC), Outcome 3 Miscarriage rate per couple.

Comparison 8 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in natural cycles (NC), Outcome 1 Live birth rate per couple (all cycles).
Figuras y tablas -
Analysis 8.1

Comparison 8 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in natural cycles (NC), Outcome 1 Live birth rate per couple (all cycles).

Comparison 9 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH), Outcome 1 Live birth rate per couple (all cycles).
Figuras y tablas -
Analysis 9.1

Comparison 9 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH), Outcome 1 Live birth rate per couple (all cycles).

Comparison 9 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH), Outcome 2 OHSS per couple.
Figuras y tablas -
Analysis 9.2

Comparison 9 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH), Outcome 2 OHSS per couple.

Comparison 9 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH), Outcome 3 Pregnancy rate per couple (all cycles).
Figuras y tablas -
Analysis 9.3

Comparison 9 In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH), Outcome 3 Pregnancy rate per couple (all cycles).

Summary of findings for the main comparison. IUI in natural cycles compared to TI in natural cycles for male subfertility

IUI in natural cycles compared to TI in natural cycles for male subfertility

Patient or population: couples with male subfertility
Settings: single centre (Australia, Italy)
Intervention: IUI in natural cycles
Comparison: TI in natural cycles

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No of couples (studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

TI in natural cycles

IUI in natural cycles

Live birth rate

Not reported in any included studies

OHSS

Not reported in any included studies

Pregnancy rate per couple (all cycles)
Follow‐up: 9‐12 months

0 per 1000

0 per 1000
(0 to 0)

OR 4.57
(0.21 to 101.61)

62
(2 studies)

⊕⊝⊝⊝
very low1,2

*The basis for the assumed risk was the median control group risk across studies. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; IUI: intra‐uterine insemination; OHSS: ovarian hyperstimulation syndrome; OR: odds ratio; TI: timed intercourse.

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality: We are very uncertain about the estimate.

1 Risk of bias was very serious: 1. Francavilla 2009, allocation concealment: high risk (on chronological basis), 2. Francavilla 2009, other bias: high risk (no stratification by diagnosis category of subfertility).
2 There was very serious imprecision, with small sample sizes and very few events.

Figuras y tablas -
Summary of findings for the main comparison. IUI in natural cycles compared to TI in natural cycles for male subfertility
Summary of findings 2. IUI in stimulated cycles compared to TI in stimulated cycles for male subfertility

IUI in stimulated cycles compared to TI in stimulated cycles for male subfertility

Patient or population: couples with male subfertility
Settings: single centre (Greece, Italy, The Netherlands)
Intervention: IUI in stimulated cycles
Comparison: TI in stimulated cycles

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No of couples (studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

TI in stimulated cycles

IUI in stimulated cycles

Live birth rate per couple (all cycles)
Follow‐up: 3 months

220 per 1000

200 per 1000
(78 to 421)

OR 0.89
(0.30 to 2.59)

81
(1 study)

⊕⊕⊝⊝
low1

OHSS per couple

Follow‐up: 6 months

See comment

See comment

Not estimable

59

(1 study)

⊕⊕⊝⊝
low1

Pregnancy rate per couple (all cycles)
Follow‐up: 3‐6 months

175 per 1000

243 per 1000
(136 to 395)

OR 1.51
(0.74 to 3.07)

202
(3 studies)

⊕⊝⊝⊝
very low1,2

Multiple pregnancy rate per couple
Follow‐up: 3 months

0 per 1000

0 per 1000
(0 to 0)

OR 3.15
(0.12 to 79.69)

81
(1 study)

⊕⊕⊝⊝
low3

Miscarriage rate per couple
Follow‐up: 3 months

73 per 1000

75 per 1000
(15 to 300)

OR 1.03
(0.19 to 5.42)

81
(1 study)

⊕⊕⊝⊝
low3

*The basis for the assumed risk was the median control group risk across studies. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; IUI: intra‐uterine insemination; OHSS: ovarian hyperstimulation syndrome; OR: odds ratio; TI: timed intercourse.

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality: We are very uncertain about the estimate.

1 There was very serious imprecision, with small sample size.
2 Inconsistency was serious between Melis 1995 (favoured TI + OH) and Gregoriou 1996 and Nan 1994 (favoured IUI + OH).
3 There was very serious imprecision, with small sample sizes and findings were compatible with substantial benefit in either group.

Figuras y tablas -
Summary of findings 2. IUI in stimulated cycles compared to TI in stimulated cycles for male subfertility
Summary of findings 3. IUI in stimulated cycles compared to TI in natural cycles for male subfertility

IUI in stimulated cycles compared to TI in natural cycles for male subfertility

Patient or population: couples with male subfertility
Settings: single centre (Italy)
Intervention: IUI in stimulated cycles
Comparison: TI in natural cycles

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No of couples (studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

TI in natural cycles

IUI in stimulated cycles

Live birth rate per couple (all cycles)
Follow‐up: 9 months

0 per 1000

0 per 1000
(0 to 0)

OR 3.14
(0.12 to 81.35)

44
(1 study)

⊕⊝⊝⊝
very low1,2

OHSS

Not reported in any included studies

Pregnancy rate per couple (all cycles)
Follow‐up: 9 months

0 per 1000

0 per 1000
(0 to 0)

OR 3.14
(0.12 to 81.35)

44
(1 study)

⊕⊝⊝⊝
very low1,2

*The basis for the assumed risk was the median control group risk across studies. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; IUI: intra‐uterine insemination; OHSS: ovarian hyperstimulation syndrome; OR: odds ratio; TI: timed intercourse.

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality: We are very uncertain about the estimate.

1 Risk of bias was very serious: 1. Allocation concealment: high risk (on chronological basis), 2. Other bias: high risk (no stratification by diagnosis category of subfertility).
2 There was very serious imprecision, with small sample sizes and very few events.

Figuras y tablas -
Summary of findings 3. IUI in stimulated cycles compared to TI in natural cycles for male subfertility
Summary of findings 4. IUI in stimulated cycles compared to IUI in natural cycles for male subfertility

IUI in stimulated cycles compared to IUI in natural cycles for male subfertility

Patient or population: couples with male subfertility
Settings: single and multicentre (Italy, the Netherlands, USA)
Intervention: IUI in stimulated cycles
Comparison: IUI in natural cycles

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No of couples
(studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

IUI in natural cycles

IUI in stimulated cycles

Live birth rate per couple (all cycles)
Follow‐up: 6‐9 months

172 per 1000

218 per 1000
(138 to 326)

OR 1.34
(0.77 to 2.33)

346
(3 studies)

⊕⊝⊝⊝
very low1,2,3

OHSS

Not reported in any included studies

Pregnancy rate per couple (all cycles)
Follow‐up: 4‐9 months

148 per 1000

226 per 1000
(148 to 329)

OR 1.68
(1.00 to 2.82)

399
(4 studies)

⊕⊝⊝⊝
very low1,3,4

Miscarriage rate per couple
Follow‐up: 6‐9 months

53 per 1000

56 per 1000
(11 to 238)

OR 1.06
(0.20 to 5.63)

115
(2 studies)

⊕⊝⊝⊝
very low5,6

*The basis for the assumed risk was the median control group risk across studies. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; IUI: intra‐uterine insemination; OHSS: ovarian hyperstimulation syndrome; OR: odds ratio.

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality: We are very uncertain about the estimate.

1 Risk of bias was very serious: 1. Francavilla 2009, allocation concealment: high risk (on chronological basis), 2. Arici 1994, Francavilla 2009, and Guzick 1999, other bias: high risk (no stratification by diagnosis category of subfertility.
2 Inconsistency was serious between Cohlen 1998a and Goverde 2000 (favoured IUI in natural cycles) and Arici 1994, Francavilla 2009, and Guzick 1999 (favoured IUI in stimulated cycles).
3 There was serious imprecision, with small sample sizes.
4 Inconsistency was serious between Cohlen 1998a (favoured IUI in natural cycles) and Arici 1994, Francavilla 2009, and Guzick 1999 (favoured IUI in stimulated cycles).
5 Risk of bias was very serious: Francavilla 2009, allocation concealment: high risk (on chronological basis) and other bias: high risk (no stratification by diagnosis category of subfertility).
6 There was serious imprecision, findings were compatible with no benefit in either group.

Figuras y tablas -
Summary of findings 4. IUI in stimulated cycles compared to IUI in natural cycles for male subfertility
Summary of findings 5. IVF compared to IUI in natural cycles for male subfertility

IVF compared to IUI in natural cycles for male subfertility

Patient or population: couples with male subfertility
Settings: single centre (the Netherlands)
Intervention: IVF
Comparison: IUI in natural cycles

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No of couples (studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

IUI in natural cycles

IVF

Live birth rate per couple (all cycles)
Follow‐up: 6 months

407 per 1000

346 per 1000
(147 to 618)

OR 0.77
(0.25 to 2.35)

53
(1 study)

⊕⊕⊝⊝
low1

OHSS

Not reported in any included studies

*The basis for the assumed risk was the median control group risk across studies. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; IUI: intra‐uterine insemination; IVF: in vitro fertilisation; OHSS: ovarian hyperstimulation syndrome; OR: odds ratio.

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality: We are very uncertain about the estimate.

1 There was very serious imprecision, with small sample sizes.

Figuras y tablas -
Summary of findings 5. IVF compared to IUI in natural cycles for male subfertility
Summary of findings 6. IVF compared to IUI in stimulated cycles for male subfertility

IVF compared to IUI in stimulated cycles for male subfertility

Patient or population: couples with male subfertility
Settings: single and multicentre (the Netherlands)
Intervention: IVF
Comparison: IUI in stimulated cycles

Outcomes

Illustrative comparative risks* (95% CI)

Relative effect
(95% CI)

No of couples (studies)

Quality of the evidence
(GRADE)

Comments

Assumed risk

Corresponding risk

IUI in stimulated cycles

IVF

Live birth rate per couple (all cycles)
Follow‐up: 6‐12 months

452 per 1000

460 per 1000
(262 to 669)

OR 1.03
(0.43 to 2.45)

86
(2 studies)

⊕⊝⊝⊝
very low1,2

OHSS per couple
Follow‐up: 6 months

See comment

See comment

Not estimable

36
(1 study)

⊕⊝⊝⊝
very low1,2

No OHSS occurred

Pregnancy rate per couple (all cycles)
Follow‐up: 6 months

611 per 1000

666 per 1000
(341 to 886)

OR 1.27
(0.33 to 4.97)

36
(1 study)

⊕⊝⊝⊝
very low1,2

*The basis for the assumed risk was the median control group risk across studies. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
CI: confidence interval; IUI: intra‐uterine insemination; IVF: in vitro fertilisation; OHSS: ovarian hyperstimulation syndrome; OR: odds ratio.

GRADE Working Group grades of evidence
High quality: Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality: We are very uncertain about the estimate.

1 Risk of bias was serious: Bensdorp 2015, other bias: high risk (no stratification by diagnosis category of subfertility).
2 There was very serious imprecision, with small sample sizes.

Figuras y tablas -
Summary of findings 6. IVF compared to IUI in stimulated cycles for male subfertility
Comparison 1. Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in natural cycles (NC)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Pregnancy rate per couple (all cycles) Show forest plot

2

62

Odds Ratio (M‐H, Fixed, 95% CI)

4.57 [0.21, 101.61]

Figuras y tablas -
Comparison 1. Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in natural cycles (NC)
Comparison 2. Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Live birth rate per couple (all cycles) Show forest plot

1

81

Odds Ratio (M‐H, Fixed, 95% CI)

0.89 [0.30, 2.59]

2 OHSS per couple Show forest plot

1

59

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

3 Pregnancy rate per couple (all cycles) Show forest plot

3

202

Odds Ratio (M‐H, Fixed, 95% CI)

1.51 [0.74, 3.07]

4 Multiple pregnancy rate per couple Show forest plot

1

81

Odds Ratio (M‐H, Fixed, 95% CI)

3.15 [0.12, 79.69]

5 Miscarriage rate per couple Show forest plot

1

81

Odds Ratio (M‐H, Fixed, 95% CI)

1.03 [0.19, 5.42]

Figuras y tablas -
Comparison 2. Intra‐uterine insemination (IUI) versus timed intercourse (TI) both in cycles with ovarian hyperstimulation (OH)
Comparison 4. Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus timed intercourse (TI) in natural cycles (NC)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Live birth rate per couple (all cycles) Show forest plot

1

44

Odds Ratio (M‐H, Fixed, 95% CI)

3.14 [0.12, 81.35]

2 Pregnancy rate per couple (all cycles) Show forest plot

1

44

Odds Ratio (M‐H, Fixed, 95% CI)

3.14 [0.12, 81.35]

Figuras y tablas -
Comparison 4. Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus timed intercourse (TI) in natural cycles (NC)
Comparison 5. Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Live birth rate per couple (all cycles) Show forest plot

3

346

Odds Ratio (M‐H, Fixed, 95% CI)

1.34 [0.77, 2.33]

1.1 Gonadotrophins

2

305

Odds Ratio (M‐H, Fixed, 95% CI)

1.31 [0.75, 2.29]

1.2 Gonadotrophins + clomiphene citrate (CC)

1

41

Odds Ratio (M‐H, Fixed, 95% CI)

2.72 [0.10, 70.79]

2 Pregnancy rate per couple (all cycles) Show forest plot

4

399

Odds Ratio (M‐H, Fixed, 95% CI)

1.68 [1.00, 2.82]

2.1 Gonadotrophins

2

328

Odds Ratio (M‐H, Fixed, 95% CI)

1.60 [0.94, 2.73]

2.2 CC

1

30

Odds Ratio (M‐H, Fixed, 95% CI)

4.83 [0.18, 128.79]

2.3 Gonadotrophins + CC

1

41

Odds Ratio (M‐H, Fixed, 95% CI)

2.72 [0.10, 70.79]

3 Miscarriage rate per couple Show forest plot

2

115

Odds Ratio (M‐H, Fixed, 95% CI)

1.06 [0.20, 5.63]

Figuras y tablas -
Comparison 5. Intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH) versus IUI in natural cycles (NC)
Comparison 8. In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in natural cycles (NC)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Live birth rate per couple (all cycles) Show forest plot

1

53

Odds Ratio (M‐H, Fixed, 95% CI)

0.77 [0.25, 2.35]

Figuras y tablas -
Comparison 8. In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in natural cycles (NC)
Comparison 9. In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Live birth rate per couple (all cycles) Show forest plot

2

86

Odds Ratio (M‐H, Fixed, 95% CI)

1.03 [0.43, 2.45]

2 OHSS per couple Show forest plot

1

36

Odds Ratio (M‐H, Fixed, 95% CI)

0.0 [0.0, 0.0]

3 Pregnancy rate per couple (all cycles) Show forest plot

1

36

Odds Ratio (M‐H, Fixed, 95% CI)

1.27 [0.33, 4.97]

Figuras y tablas -
Comparison 9. In vitro fertilisation (IVF) versus intra‐uterine insemination (IUI) in cycles with ovarian hyperstimulation (OH)