id | Study | Lib. in paper | Exposition period | Study type |
Control type |
Tags | OR 95%CI | x1/n1 x0/n0 | no cases | no exposed | ROB | Ref. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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S2404 R3055 |
Ashkenazi-Hoffnung, 2013 | Late preterm birth (34-36 weeks gestation) | at least 1st trimester | prospective cohort | exposed to other treatment, sick | Adjustment: No | 0.07 [0.00;1.42] C | 0/28 5/28 | 5 | 28 |
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ref | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
S2397 R3004 |
Pasternak, 2013 | Preterm birth (< 37 weeks of gestation) | during pregnancy (anytime or not specified) | population based cohort retrospective | unexposed (general population or NOS) | Adjustment: Yes | 0.98 [0.93;1.04] | 1,852/36,839 7,213/146,908 | 9,065 | 36,839 |
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ref | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
S2395 R2975 |
Matok, 2009 | Preterm (< 37 wk) | 1st trimester | retrospective cohort (claims database) | unexposed (general population or NOS) | Adjustment: Yes | 1.15 [0.99;1.34] | 219/3,458 4,593/78,245 | 4,812 | 3,458 |
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ref | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
S2751 R3654 |
Asker, 2005 | Preterm birth (<37 completed weeks) | during pregnancy (anytime or not specified) | population based cohort retrospective | unexposed (general population or NOS) | Adjustment: Yes | 0.94 [0.77;1.14] | 54/1,166 33,653/665,572 | 33,707 | 1,166 |
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ref | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
S2393 R2961 |
Berkovitch, 2002 | Prematurity (<37 wk) | during pregnancy (anytime or not specified) | prospective cohort | unexposed, disease free | Adjustment: No Matched | 3.37 [1.12;10.12] | 13/158 4/164 | 17 | 158 |
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ref | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
S2407 R3065 |
Sorensen, 2000 | Preterm (less than 37 weeks) | 2nd and/or 3rd trimester | retrospective cohort (claims database) | unexposed (general population or NOS) | Adjustment: Yes | 1.02 [0.60;1.70] | 17/295 793/13,327 | 810 | 295 |
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ref | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Total | 6 studies | 1.03 [0.89;1.20] | 48,416 | 41,944 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
x1: number of endpoints among exposed, n1: number of exposed; x0: number of endpoints among non exposed, n0: number of non exposed; C: calculated odds ratio from numbers of events and effectives |
Asymetry test p-value = 0.7170 (by Egger's regression)
slope=-0.0184 (0.0586); intercept=0.3626 (0.9318); t=0.3891; p=0.7170
excluded