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Cochrane Database of Systematic Reviews

Vitamin D supplementation for prevention of cancer in adults

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Information

DOI:
https://doi.org/10.1002/14651858.CD007469Copy DOI
Database:
  1. Cochrane Database of Systematic Reviews
Version published:
  1. 08 October 2008see what's new
Type:
  1. Intervention
Stage:
  1. Protocol
Cochrane Editorial Group:

  1. Cochrane Metabolic and Endocrine Disorders Group

Copyright:
  1. Copyright © 2010 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

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Authors

  • Goran Bjelakovic

    Correspondence to: Cochrane Hepato‐Biliary Group, Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 3344, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark

    [email protected]

  • Lise Lotte Gluud

    Cochrane Hepato‐Biliary Group, Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 3344, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark

  • Dimitrinka Nikolova

    Cochrane Hepato‐Biliary Group, Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 3344, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark

  • Kate Whitfield

    Cochrane Hepato‐Biliary Group, Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 3344, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark

  • Jørn Wetterslev

    Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 3344, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark

  • Christian Gluud

    Cochrane Hepato‐Biliary Group, Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 3344, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark

Contributions of authors

Goran Bjelakovic (GB): initiated the review, drafted the protocol, will perform the literature search, data extraction, and statistical analyses, and draft the review.
Lise Lotte Gluud (LLG): revised the protocol, will perform data extraction, and revise the review.
Dimitrinka Nikolova (DN): revised the protocol, will perform data extraction, and revise the review.
Kate Whitfield (KW): developed the search strategy, revised the protocol, will perform data extraction, and revise the review.
Jorn Wetterslev (JW): revised the protocol, will perform data extraction, and revise the review.
Christian Gluud (CG): revised the protocol, will act as arbiter for disagreements, and revise the final review.

Sources of support

Internal sources

  • The Copenhagen Trial Unit, Centre for Clinical Intervention Research, Rigshospitalet, Denmark.

External sources

  • No sources of support supplied

Declarations of interest

None known.

Acknowledgements

Copenhagen Trial Unit, Centre for Clinical Intervention Research, Copenhagen, Denmark

Version history

Published

Title

Stage

Authors

Version

2014 Jun 23

Vitamin D supplementation for prevention of cancer in adults

Review

Goran Bjelakovic, Lise Lotte Gluud, Dimitrinka Nikolova, Kate Whitfield, Goran Krstic, Jørn Wetterslev, Christian Gluud

https://doi.org/10.1002/14651858.CD007469.pub2

2008 Oct 08

Vitamin D supplementation for prevention of cancer in adults

Protocol

Goran Bjelakovic, Lise Lotte Gluud, Dimitrinka Nikolova, Kate Whitfield, Jørn Wetterslev, Christian Gluud

https://doi.org/10.1002/14651858.CD007469

Keywords

MeSH

Medical Subject Headings (MeSH) Keywords

Medical Subject Headings Check Words

Aged; Female; Humans; Male; Middle Aged;

PICOs

Population
Intervention
Comparison
Outcome

The PICO model is widely used and taught in evidence-based health care as a strategy for formulating questions and search strategies and for characterizing clinical studies or meta-analyses. PICO stands for four different potential components of a clinical question: Patient, Population or Problem; Intervention; Comparison; Outcome.

See more on using PICO in the Cochrane Handbook.

Table 1. Study populations

study ID

intervention

[n] screened

[n] randomised

[n] safety

[n] ITT

[n] finishing study

comments

ID1

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ID2

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ID3

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ID3

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ID4

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ID5

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ID6

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ID7

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ID8

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ID9

Intervention 1 (I1)

Intervention 2 (I2)

Control 1 (C1)

Control 2 (C2)

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

I1:

I2:

C1:

C2:

Total:

ITT = intention‐to‐treat
Figures and Tables -
Table 1. Study populations
Navigate to table in Protocol