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Cochrane Database of Systematic Reviews

Efectos de los objetivos más bajos versus más altos de saturación de oxígeno en sangre arterial sobre la muerte o la discapacidad en lactantes prematuros

Información

DOI:
https://doi.org/10.1002/14651858.CD011190.pub2Copiar DOI
Base de datos:
  1. Cochrane Database of Systematic Reviews
Versión publicada:
  1. 11 abril 2017see what's new
Tipo:
  1. Intervention
Etapa:
  1. Review
Grupo Editorial Cochrane:
  1. Grupo Cochrane de Neonatología

Copyright:
  1. Copyright © 2018 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

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Autores

  • Lisa M Askie

    Correspondencia a: NHMRC Clinical Trials Centre, University of Sydney, Camperdown, Australia

    [email protected]

  • Brian A Darlow

    Department of Paediatrics, University of Otago, Christchurch, New Zealand

  • Peter G Davis

    Newborn Research Centre and Neonatal Services, The Royal Women's Hospital, Melbourne, Australia

    Murdoch Childrens Research Institute, Melbourne, Australia

    Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Australia

  • Neil Finer

    Department of Pediatrics, University of California San Diego, San Diego, USA

  • Ben Stenson

    Neonatal Unit, Simpson Centre for Reproductive Health, Royal Infirmary of Edinburgh, Edinburgh, UK

  • Maximo Vento

    Health Research Institute La Fe, Division of Neonatology, University & Polytechnic Hospital La Fe, Valencia, Spain

  • Robin Whyte

    Department of Neonatal Pediatrics, Halifax Dalhousie University, IWK Health Centre, Halifax, Canada

Contributions of authors

All authors contributed to the conception and design of the study, and the interpretation of data, reviewed and commented on the intellectual content, and gave final approval of the document to be published. Additional tasks undertaken by specific authors included:

Lisa Askie: screened the search results, extracted and entered data into RevMan, checked the extracted data for accuracy, undertook the initial 'Risk of bias' assessments, contributed to the subsequent 'Risk of bias' assessments discussions, and drafted the manuscript.

Brian Darlow: screened the search results, checked the extracted data for accuracy, and contributed to the 'Risk of bias' assessments discussions.

Peter Davis: screened the search results, checked the extracted data for accuracy, and contributed to the 'Risk of bias' assessments discussions.

Neil Finer: checked the extracted data for accuracy and contributed to the 'Risk of bias' assessments discussions.

Ben Stenson: checked the extracted data for accuracy and contributed to the 'Risk of bias' assessments discussions.

Maximo Vento: checked the extracted data for accuracy and contributed to the 'Risk of bias' assessments discussions.

Robin Whyte: checked the extracted data for accuracy, undertook the initial 'Risk of bias' assessments, and contributed to the subsequent 'Risk of bias' assessments discussions.

Sources of support

Internal sources

  • NHMRC Clinical Trials Centre, University of Sydney, Australia.

    A/Prof Askie's time on this Cochrane Review was partly supported by a National Health and Medical Research Council Program Grant (1037786).

  • Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health, Department of Health and Human Services, USA.

    A/Prof Askie's time on this Cochrane Review was partly supported by a grant (R03HD 079867) from the Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health.

External sources

  • Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health, Department of Health and Human Services, USA.

    Editorial support of the Cochrane Neonatal Review Group has been funded with Federal funds from the Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health, Department of Health and Human Services, USA, under Contract No. HHSN275201100016C.

Declarations of interest

Six members of the authorship team were investigators in the included studies and the NeOProM Collaboration. One member was included for his expertise in the field but had no affiliation with the included studies.

Lisa Askie is a member of the BOOST II Australia writing committee and the NeOProM Collaboration.
Brian Darlow is a member of the BOOST‐NZ trial management committee, the BOOST II Australia trial management committee, and the NeOProM Collaboration.
Peter Davis is a member of the BOOST‐II Australia trial management committee and the NeOProM Collaboration.
Neil Finer is a member of the SUPPORT trial management committee and the NeOProM Collaboration.
Ben Stenson is a member of the BOOST‐II UK steering committee and the NeOProM Collaboration.
Maximo Vento has no conflicts of interest to declare.
Robin Whyte is a member of the COT trial management committee and the NeOProM Collaboration.

Acknowledgements

We wish to acknowledge the following people who have contributed to the preparation of this review in many important ways over many years: Kylie Hunter, Lucy Davies, Cynthia Cole, Win Tin, the investigators/statisticians/data managers/research nurses of the included trials, and all the members of the NeOProM Collaboration. We also wish to pay tribute to several (sadly now deceased) colleagues who have challenged and inspired us to continue this work over several decades: David Henderson‐Smart, Jack Sinclair, Edmund Hey, and Bill Silverman.

Version history

Published

Title

Stage

Authors

Version

2017 Apr 11

Effects of targeting lower versus higher arterial oxygen saturations on death or disability in preterm infants

Review

Lisa M Askie, Brian A Darlow, Peter G Davis, Neil Finer, Ben Stenson, Maximo Vento, Robin Whyte

https://doi.org/10.1002/14651858.CD011190.pub2

2014 Jul 23

Effects of targeting higher versus lower arterial oxygen saturations on death or disability in preterm infants

Protocol

Lisa M Askie, Brian A Darlow, Peter G Davis, Neil Finer, Ben Stenson, Maximo Vento, Robin Whyte

https://doi.org/10.1002/14651858.CD011190

Differences between protocol and review

The title of the review was changed to the "Effects of targeting lower versus higher arterial oxygen saturations..." from the original "...higher versus lower ..." to better reflect that, for the purposes of this review, lower oxygen targeting was considered the experimental treatment.

Keywords

MeSH

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

Participant flow chart for the combined five NeOProM trials
Figuras y tablas -
Figure 2

Participant flow chart for the combined five NeOProM trials

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.

Oximeter offset to achieve masking as used in the five NeOProM trials
Figuras y tablas -
Figure 4

Oximeter offset to achieve masking as used in the five NeOProM trials

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 1 Death or major disability by 18 to 24 months corrected age (aligned definition).
Figuras y tablas -
Analysis 1.1

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 1 Death or major disability by 18 to 24 months corrected age (aligned definition).

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 2 Death or major disability by 18 to 24 months corrected age (trialist defined).
Figuras y tablas -
Analysis 1.2

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 2 Death or major disability by 18 to 24 months corrected age (trialist defined).

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 3 Death to 18 to 24 months corrected age.
Figuras y tablas -
Analysis 1.3

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 3 Death to 18 to 24 months corrected age.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 4 Major disability by 18 to 24 months corrected age (aligned definition).
Figuras y tablas -
Analysis 1.4

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 4 Major disability by 18 to 24 months corrected age (aligned definition).

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 5 Major disability by 18 to 24 months corrected age (trialist defined).
Figuras y tablas -
Analysis 1.5

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 5 Major disability by 18 to 24 months corrected age (trialist defined).

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 6 Death to discharge.
Figuras y tablas -
Analysis 1.6

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 6 Death to discharge.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 7 Severe retinopathy of prematurity or retinal therapy (trialist defined).
Figuras y tablas -
Analysis 1.7

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 7 Severe retinopathy of prematurity or retinal therapy (trialist defined).

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 8 Patent ductus arteriosus requiring medical or surgical treatment.
Figuras y tablas -
Analysis 1.8

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 8 Patent ductus arteriosus requiring medical or surgical treatment.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 9 Necrotising enterocolitis.
Figuras y tablas -
Analysis 1.9

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 9 Necrotising enterocolitis.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 10 Cerebral palsy with GMFCS level 2 or higher at 18 to 24 months corrected age.
Figuras y tablas -
Analysis 1.10

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 10 Cerebral palsy with GMFCS level 2 or higher at 18 to 24 months corrected age.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 11 Blindness.
Figuras y tablas -
Analysis 1.11

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 11 Blindness.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 12 Severe hearing loss.
Figuras y tablas -
Analysis 1.12

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 12 Severe hearing loss.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 13 Proportion of infants re‐admitted to hospital up to 18 to 24 months corrected age.
Figuras y tablas -
Analysis 1.13

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 13 Proportion of infants re‐admitted to hospital up to 18 to 24 months corrected age.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 14 Weight (grams) at discharge home.
Figuras y tablas -
Analysis 1.14

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 14 Weight (grams) at discharge home.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 15 Weight (kilograms) at 18 or 24 months corrected age.
Figuras y tablas -
Analysis 1.15

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 15 Weight (kilograms) at 18 or 24 months corrected age.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 16 Days of endotracheal intubation.
Figuras y tablas -
Analysis 1.16

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 16 Days of endotracheal intubation.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 17 Days of CPAP.
Figuras y tablas -
Analysis 1.17

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 17 Days of CPAP.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 18 Days of supplemental oxygen.
Figuras y tablas -
Analysis 1.18

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 18 Days of supplemental oxygen.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 19 Supplemental oxygen requirement at 36 weeks postmenstrual age.
Figuras y tablas -
Analysis 1.19

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 19 Supplemental oxygen requirement at 36 weeks postmenstrual age.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 20 Days on home oxygen.
Figuras y tablas -
Analysis 1.20

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 20 Days on home oxygen.

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 21 Quantitative Bayley III scores (Composite Cognitive Score (CCS)).
Figuras y tablas -
Analysis 1.21

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 21 Quantitative Bayley III scores (Composite Cognitive Score (CCS)).

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 22 Quantitative Bayley III scores (Composite Language Score (CLS)).
Figuras y tablas -
Analysis 1.22

Comparison 1 Lower versus higher targeted oxygen saturations (no subgroups), Outcome 22 Quantitative Bayley III scores (Composite Language Score (CLS)).

Comparison 2 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by gestational age), Outcome 1 Death or major disability by 18 to 24 months corrected age (trialist defined).
Figuras y tablas -
Analysis 2.1

Comparison 2 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by gestational age), Outcome 1 Death or major disability by 18 to 24 months corrected age (trialist defined).

Comparison 3 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by sex), Outcome 1 Death or major disability by 18 to 24 months corrected age (trialist defined).
Figuras y tablas -
Analysis 3.1

Comparison 3 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by sex), Outcome 1 Death or major disability by 18 to 24 months corrected age (trialist defined).

Comparison 4 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by multiples), Outcome 1 Death or major disability by 18 to 24 months corrected age (trialist defined).
Figuras y tablas -
Analysis 4.1

Comparison 4 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by multiples), Outcome 1 Death or major disability by 18 to 24 months corrected age (trialist defined).

Comparison 5 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by oximeter calibration software), Outcome 1 Death or major disability by 18 to 24 months corrected age (aligned definition).
Figuras y tablas -
Analysis 5.1

Comparison 5 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by oximeter calibration software), Outcome 1 Death or major disability by 18 to 24 months corrected age (aligned definition).

Comparison 5 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by oximeter calibration software), Outcome 2 Death or major disability by 18 to 24 months corrected age (trialist defined).
Figuras y tablas -
Analysis 5.2

Comparison 5 Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by oximeter calibration software), Outcome 2 Death or major disability by 18 to 24 months corrected age (trialist defined).

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 1 Death by 18 to 24 months corrected age.
Figuras y tablas -
Analysis 6.1

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 1 Death by 18 to 24 months corrected age.

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 2 Major disability by 18 to 24 months corrected age (aligned definition).
Figuras y tablas -
Analysis 6.2

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 2 Major disability by 18 to 24 months corrected age (aligned definition).

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 3 Major disability by 18 to 24 months corrected age (trialist defined).
Figuras y tablas -
Analysis 6.3

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 3 Major disability by 18 to 24 months corrected age (trialist defined).

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 4 Death to discharge.
Figuras y tablas -
Analysis 6.4

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 4 Death to discharge.

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 5 Severe retinopathy of prematurity or retinal therapy.
Figuras y tablas -
Analysis 6.5

Comparison 6 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software), Outcome 5 Severe retinopathy of prematurity or retinal therapy.

Comparison 7 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by gestational age), Outcome 1 Death by 18 to 24 months corrected age.
Figuras y tablas -
Analysis 7.1

Comparison 7 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by gestational age), Outcome 1 Death by 18 to 24 months corrected age.

Comparison 7 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by gestational age), Outcome 2 Major disability by 18 to 24 months corrected age (trialist defined).
Figuras y tablas -
Analysis 7.2

Comparison 7 Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by gestational age), Outcome 2 Major disability by 18 to 24 months corrected age (trialist defined).

Summary of findings for the main comparison. Oxygen saturation targeting in preterm infants

Lower compared to higher targeted oxygen saturations (no subgroups) in preterm infants

Patient or population: extremely preterm infants
Setting: neonatal intensive care units
Intervention: lower oxygen saturation targets
Comparison: higher oxygen saturations targets (no subgroups)

Outcomes

Anticipated absolute effects* (95% CI)

Relative effect
(95% CI)

№ of participants
(studies)

Quality of the evidence
(GRADE)

Comments

Risk with higher targeted oxygen saturations (no subgroups)

Risk with lower targeted oxygen saturations

Death or major disability by 18 to 24 months corrected age (aligned definition)

Study population

RR 1.04
(0.98 to 1.10)

4754
(5 RCTs)

⊕⊕⊕⊕
HIGH

493 per 1000

513 per 1000
(483 to 542)

Death to 18 to 24 months corrected age

Study population

RR 1.16
(1.03 to 1.31)

4873
(5 RCTs)

⊕⊕⊕⊕
HIGH

171 per 1000

199 per 1000
(176 to 224)

Major disability by 18 to 24 months corrected age (aligned definition)

Study population

RR 1.01
(0.93 to 1.09)

3867
(5 RCTs)

⊕⊕⊕⊕
HIGH

383 per 1000

387 per 1000
(356 to 417)

Retinopathy of prematurity requiring treatment

Study population

RR 0.72
(0.61 to 0.85)

4089
(5 RCTs)

⊕⊕⊕⊝
MODERATE 1

148 per 1000

106 per 1000
(90 to 125)

Necrotising enterocolitis

Study population

RR 1.24
(1.05 to 1.47)

4929
(5 RCTs)

⊕⊕⊕⊕
HIGH

90 per 1000

112 per 1000
(95 to 133)

Blindness

Study population

RR 1.13
(0.65 to 1.97)

3875
(5 RCTs)

⊕⊕⊕⊝
MODERATE 2

12 per 1000

13 per 1000
(8 to 23)

*The risk in the intervention group (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;RCT: randomised controlled trial; RR: risk ratio

GRADE Working Group grades of evidence
High quality: We are very confident that the true effect lies close to that of the estimate of the effect
Moderate quality: We are moderately confident in the effect estimate: The true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different
Low quality: Our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect
Very low quality: We have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect

1Downgraded to moderate for inconsistency due to moderate heterogeneity (I² = 72%).

2Downgraded to moderate for imprecision due to low event rates.

Figuras y tablas -
Summary of findings for the main comparison. Oxygen saturation targeting in preterm infants
Comparison 1. Lower versus higher targeted oxygen saturations (no subgroups)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Death or major disability by 18 to 24 months corrected age (aligned definition) Show forest plot

5

4754

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.98, 1.10]

2 Death or major disability by 18 to 24 months corrected age (trialist defined) Show forest plot

5

4751

Risk Ratio (M‐H, Fixed, 95% CI)

1.07 [1.00, 1.14]

3 Death to 18 to 24 months corrected age Show forest plot

5

4873

Risk Ratio (M‐H, Fixed, 95% CI)

1.16 [1.03, 1.31]

4 Major disability by 18 to 24 months corrected age (aligned definition) Show forest plot

5

3867

Risk Ratio (M‐H, Fixed, 95% CI)

1.01 [0.93, 1.09]

5 Major disability by 18 to 24 months corrected age (trialist defined) Show forest plot

5

3864

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.94, 1.14]

6 Death to discharge Show forest plot

5

4958

Risk Ratio (M‐H, Fixed, 95% CI)

1.16 [1.03, 1.31]

7 Severe retinopathy of prematurity or retinal therapy (trialist defined) Show forest plot

5

4089

Risk Ratio (M‐H, Fixed, 95% CI)

0.72 [0.61, 0.85]

8 Patent ductus arteriosus requiring medical or surgical treatment Show forest plot

5

4928

Risk Ratio (M‐H, Fixed, 95% CI)

1.00 [0.95, 1.06]

9 Necrotising enterocolitis Show forest plot

5

4929

Risk Ratio (M‐H, Fixed, 95% CI)

1.24 [1.05, 1.47]

10 Cerebral palsy with GMFCS level 2 or higher at 18 to 24 months corrected age Show forest plot

5

3877

Risk Ratio (M‐H, Fixed, 95% CI)

1.02 [0.79, 1.32]

11 Blindness Show forest plot

5

3875

Risk Ratio (M‐H, Fixed, 95% CI)

1.13 [0.65, 1.97]

12 Severe hearing loss Show forest plot

5

3869

Risk Ratio (M‐H, Fixed, 95% CI)

1.02 [0.73, 1.43]

13 Proportion of infants re‐admitted to hospital up to 18 to 24 months corrected age Show forest plot

1

295

Risk Ratio (M‐H, Fixed, 95% CI)

1.08 [0.93, 1.26]

14 Weight (grams) at discharge home Show forest plot

1

295

Mean Difference (IV, Fixed, 95% CI)

‐52.0 [‐214.25, 110.25]

15 Weight (kilograms) at 18 or 24 months corrected age Show forest plot

1

280

Mean Difference (IV, Fixed, 95% CI)

0.80 [‐0.24, 1.84]

16 Days of endotracheal intubation Show forest plot

2

1386

Mean Difference (IV, Fixed, 95% CI)

0.28 [‐1.16, 1.72]

17 Days of CPAP Show forest plot

3

2526

Mean Difference (IV, Fixed, 95% CI)

‐0.04 [‐1.38, 1.30]

18 Days of supplemental oxygen Show forest plot

3

2507

Mean Difference (IV, Fixed, 95% CI)

‐8.78 [‐12.02, ‐5.54]

19 Supplemental oxygen requirement at 36 weeks postmenstrual age Show forest plot

5

4175

Risk Ratio (M‐H, Fixed, 95% CI)

0.87 [0.81, 0.94]

20 Days on home oxygen Show forest plot

2

237

Mean Difference (IV, Fixed, 95% CI)

‐24.17 [‐57.99, 9.66]

21 Quantitative Bayley III scores (Composite Cognitive Score (CCS)) Show forest plot

2

1892

Mean Difference (IV, Fixed, 95% CI)

0.55 [‐0.91, 2.00]

22 Quantitative Bayley III scores (Composite Language Score (CLS)) Show forest plot

1

903

Mean Difference (IV, Fixed, 95% CI)

0.20 [‐2.03, 2.43]

Figuras y tablas -
Comparison 1. Lower versus higher targeted oxygen saturations (no subgroups)
Comparison 2. Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by gestational age)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Death or major disability by 18 to 24 months corrected age (trialist defined) Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 < 26 weeks

1

537

Risk Ratio (M‐H, Fixed, 95% CI)

1.09 [0.89, 1.32]

1.2 ≥ 26 weeks

1

697

Risk Ratio (M‐H, Fixed, 95% CI)

1.17 [0.86, 1.60]

Figuras y tablas -
Comparison 2. Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by gestational age)
Comparison 3. Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by sex)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Death or major disability by 18 to 24 months corrected age (trialist defined) Show forest plot

1

941

Risk Ratio (M‐H, Fixed, 95% CI)

1.10 [0.97, 1.26]

1.1 Male

1

503

Risk Ratio (M‐H, Fixed, 95% CI)

1.13 [0.96, 1.33]

1.2 Female

1

438

Risk Ratio (M‐H, Fixed, 95% CI)

1.07 [0.87, 1.31]

Figuras y tablas -
Comparison 3. Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by sex)
Comparison 4. Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by multiples)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Death or major disability by 18 to 24 months corrected age (trialist defined) Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 Singleton

1

670

Risk Ratio (M‐H, Fixed, 95% CI)

1.10 [0.94, 1.29]

1.2 Multiple

1

271

Risk Ratio (M‐H, Fixed, 95% CI)

1.11 [0.88, 1.39]

Figuras y tablas -
Comparison 4. Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by multiples)
Comparison 5. Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by oximeter calibration software)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Death or major disability by 18 to 24 months corrected age (aligned definition) Show forest plot

5

4684

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.98, 1.10]

1.1 Original algorithm

5

3003

Risk Ratio (M‐H, Fixed, 95% CI)

1.00 [0.94, 1.07]

1.2 Revised algorithm

3

1681

Risk Ratio (M‐H, Fixed, 95% CI)

1.13 [1.02, 1.24]

2 Death or major disability by 18 to 24 months corrected age (trialist defined) Show forest plot

5

4681

Risk Ratio (M‐H, Fixed, 95% CI)

1.07 [1.00, 1.15]

2.1 Original algorithm

5

3000

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.95, 1.13]

2.2 Revised algorithm

3

1681

Risk Ratio (M‐H, Fixed, 95% CI)

1.13 [1.02, 1.24]

Figuras y tablas -
Comparison 5. Lower versus higher targeted oxygen saturations (primary outcome, subgrouped by oximeter calibration software)
Comparison 6. Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Death by 18 to 24 months corrected age Show forest plot

5

4803

Risk Ratio (M‐H, Fixed, 95% CI)

1.16 [1.03, 1.30]

1.1 Original

5

3087

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.91, 1.22]

1.2 Revised

3

1716

Risk Ratio (M‐H, Fixed, 95% CI)

1.38 [1.13, 1.68]

2 Major disability by 18 to 24 months corrected age (aligned definition) Show forest plot

5

3967

Risk Ratio (M‐H, Fixed, 95% CI)

1.01 [0.93, 1.09]

2.1 Original

5

2529

Risk Ratio (M‐H, Fixed, 95% CI)

0.99 [0.90, 1.09]

2.2 Revised

3

1438

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.91, 1.22]

3 Major disability by 18 to 24 months corrected age (trialist defined) Show forest plot

5

3964

Risk Ratio (M‐H, Fixed, 95% CI)

1.04 [0.94, 1.14]

3.1 Original

5

2526

Risk Ratio (M‐H, Fixed, 95% CI)

1.02 [0.89, 1.17]

3.2 Revised

3

1438

Risk Ratio (M‐H, Fixed, 95% CI)

1.05 [0.91, 1.22]

4 Death to discharge Show forest plot

4

3757

Risk Ratio (M‐H, Fixed, 95% CI)

1.18 [1.03, 1.36]

4.1 Original

4

2575

Risk Ratio (M‐H, Fixed, 95% CI)

1.06 [0.90, 1.26]

4.2 Revised

2

1182

Risk Ratio (M‐H, Fixed, 95% CI)

1.45 [1.15, 1.84]

5 Severe retinopathy of prematurity or retinal therapy Show forest plot

4

3073

Risk Ratio (M‐H, Fixed, 95% CI)

0.70 [0.58, 0.84]

5.1 Original

4

2085

Risk Ratio (M‐H, Fixed, 95% CI)

0.67 [0.53, 0.84]

5.2 Revised

2

988

Risk Ratio (M‐H, Fixed, 95% CI)

0.77 [0.56, 1.05]

Figuras y tablas -
Comparison 6. Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by oximeter calibration software)
Comparison 7. Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by gestational age)

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Death by 18 to 24 months corrected age Show forest plot

1

Risk Ratio (M‐H, Fixed, 95% CI)

Subtotals only

1.1 < 26 weeks

1

550

Risk Ratio (M‐H, Fixed, 95% CI)

1.22 [0.95, 1.57]

1.2 ≥ 26 weeks

1

731

Risk Ratio (M‐H, Fixed, 95% CI)

1.25 [0.84, 1.86]

2 Major disability by 18 to 24 months corrected age (trialist defined) Show forest plot

1

976

Risk Ratio (M‐H, Fixed, 95% CI)

0.93 [0.64, 1.35]

2.1 < 26 weeks

1

367

Risk Ratio (M‐H, Fixed, 95% CI)

0.84 [0.52, 1.37]

2.2 ≥ 26 weeks

1

609

Risk Ratio (M‐H, Fixed, 95% CI)

1.07 [0.59, 1.93]

Figuras y tablas -
Comparison 7. Lower versus higher targeted oxygen saturations (secondary outcomes, subgrouped by gestational age)