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Interventions during pregnancy to prevent spontaneous preterm birth: an overview of Cochrane systematic reviews

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view the current version 14 November 2018

Appendices

Appendix 1. Search strategy

#1 preterm near birth*

#2 preterm near lab*r

#3 preterm near delivery

#4. pre‐term near birth*

#5 pre‐term near delivery

#6 premature near birth*

#7 pre‐term near lab*r

#8 premature near delivery

#9 premature near lab*r

#10 MeSH descriptor: [Premature Birth] explode all trees

#11 MeSH descriptor: [Obstetric Labor, Premature] explode all trees

#12 #1 or #2 or #3 or #4 or #5 or #6 or #7 or #8 or #9 or #10 or #11

Limit to Cochrane reviews and protocols

Decision tree to determine the eligibility of Cochrane reviews published before 2014
Figures and Tables -
Figure 1

Decision tree to determine the eligibility of Cochrane reviews published before 2014

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Table 1. Data synthesis example

Review

Comparison

Outcome measure

Number of trials/participants

Effect estimate/ARR/NNTB/NNTH

GRADE assessment

Effectiveness statement

Recommendations for practice or research (published in the review)

Abbreviations:

ARR ‐ Absolute Risk Reduction

NNTB ‐ Number needed to treat for an additional beneficial outcome

NNTH ‐ Number needed to treat for an additional harmful outcome
Figures and Tables -
Table 1. Data synthesis example
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