The Cochrane Pregnancy and Childbirth Group
Data Extraction Form
Review title:
Review ID:
Study ID:
Reference ID:
Person extracting data
(data should be extracted
independently by at least 2 people):
Date of date extraction:
Year of study publication:
Title:
Author:
Reference:
Other publications from same study (additional reports of the same study should be grouped under the same
study identifier see “Organising studies and references”, p 35 RevMan User Guide):
Study eligibility
Study
Eligibility criteria
Characteristics (Insert inclusion criteria for each
characteristic as defined in the
Protocol)
Type of study
Randomised Controlled Trial
Eligibility criteria
met?
Yes
No
Location in text
or source (pg &
¶/fig/table/other
Unclear )
Quasi-randomised Controlled Trial
Participants
Types of
intervention
Types of
comparison
Types of
outcome
measures
INCLUDE
EXCLUDE
Reason for
exclusion
Notes:
DO NOT PROCEED IF STUDY EXCLUDED FROM REVIEW
1
Study design
Type of study design (e.g. parallel; cluster; cross-over trial)
Participants and setting
Describe setting:
Inclusion criteria:
Exclusion criteria:
Intervention
Experimental intervention:
Total number randomised: n=
Comparison
Control/Comparison intervention:
Total number randomised: n=
Outcomes:
Outcomes:
2
Risk of Bias assessment
See Chapter 8 of the Cochrane Handbook. Additional domains may be added for nonrandomised studies.
Domain
Random sequence
generation
(selection bias)
Allocation
concealment
(selection bias)
Blinding of
participants and
personnel
(performance
bias)
(if separate
judgement by
outcome(s)
required)
Blinding of
outcome
assessment
(detection bias)
(if separate
judgement by
outcome(s)
required)
Incomplete
outcome data
(attrition bias)
(if separate
judgement by
outcome(s)
required)
Selective outcome
reporting?
(reporting bias)
Other bias
Notes:
Risk of bias
Support for judgement
(include direct quotes where available
Low High Unclear with explanatory comments)
Location in text
or source (pg &
¶/fig/table/other)
Outcome group: All/
Outcome group:
Outcome group: All/
Outcome group:
Outcome group: All/
Outcome group:
3
Additional information requested
Information requested:
From:
Date:
Response:
Response forwarded to TSC (Lynn Hampson – lynn@liverpool.ac.uk) to store with original
report:
Outcomes for main analysis
Total number of participants in study =
Outcome Measures (Dichotomous)
Intervention group
Total no. in group =
events
total
Control group
Total no. in group =
events
total
Primary
1
2
3
Secondary
4
5
6
7
Total number of participants in study =
Outcome Measures (Continuous)
Intervention group
Total no. in group =
mean
SD
total
Control group
Total no. in group =
mean
SD
total
Primary
1
2
3
4
Secondary
4
5
6
7
Outcomes for sub-group analyses
Total number of participants in study =
Outcome Measures (Dichotomous)
Intervention group
Total no. in group =
events
total
Control group
Total no. in group =
events
total
Primary
1
2
3
Total number of participants in study =
Outcome Measures (Continuous)
Intervention group
Total no. in study =
mean
SD
total
Control group
Total no. in study =
mean
SD
total
Primary
1
2
3
General conclusions
Very brief summary of study authors main findings/conclusions:
5
Notes
Exclusion after data extraction
Reasons for exclusion: (study design? participants? interventions/ outcomes? attrition? bias?)
Dates:
Date entered into RevMan and by whom?
Date checked and by whom?
This form was adapted from “Good practice templates” developed by the
Cochrane Editorial Resources Committee
http://training.cochrane.org/authors/presentations/collecting-data
6