Nifedipine (versus unexposed)

All congenital malformations (majors, minors, majors and minors, or unspecified)

R analysis
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.
S13991
R54946		 Weber-Schoendorfer, 2008 All birth defects at least 1st trimester prospective cohort unexposed (general population or NOS) Adjustment: No Indications Antihypertensive: All hypertensions, any indications or not specified 1.31 [0.39;4.42] C 3/51   33/724 36 51
ref
S14356
R56826		 Bortolus, 2000 Babies with malformations 2nd and/or 3rd trimester excluded randomized controlled trial unexposed, sick Adjustment: Randomisation Indications Antihypertensive: All hypertensions, any indications or not specified 3.60 [0.41;31.52] C
excluded (exposition period) 		5/94   1/65 6 94
ref
S14357
R56848		 Parazzini, 1998 Congenital malformations 2nd and/or 3rd trimester excluded randomized controlled trial unexposed, sick Adjustment: Randomisation Indications Antihypertensive: All hypertensions, any indications or not specified 1.98 [0.18;22.16] C
excluded (exposition period) 		2/129   1/127 3 129
ref
Total 1 studies 1.31 [0.39;4.42] 36 51
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

Forest plot

StudyTE95% CIn casesn exposedweightROBABCDEF Weber-Schoendorfer, 2008Weber-Schoendorfer, 2008 1.31[0.39; 4.42]36510%ROB confusion: criticalROB selection: moderateROB classification: moderateROB missing: moderateROB mesure: unclearROB reporting: moderate0.55.01.0ROB: A: confusion, B: selection, C: classification, D: missing, E: measurement, F: reportinglow,moderate,serious,critical,unclear,

Sensitivity analysis

SubsetTE95% CIn casesn exposedkI2 Type of studies cohort studiescohort studies 1.31[0.39; 4.42]3651 -NAWeber-Schoendorfer, 2008 1 case control studiescase control studies 0 Type of controls unexposed (disease free or unspecified)unexposed (disease free or unspecified) 1.31[0.39; 4.42]3651 -NAWeber-Schoendorfer, 2008 1 Tags Adjustment   - No  - No 1.31[0.39; 4.42]3651 -NAWeber-Schoendorfer, 2008 1 Indications Antihypertensive   - All hypertensions, any indications ...  - All hypertensions, any indications or not specified 1.31[0.39; 4.42]3651 -NAWeber-Schoendorfer, 2008 1 All studiesAll studies 1.31[0.39; 4.42]3651 -NAWeber-Schoendorfer, 2008 10.55.01.0

Publication bias and p-hacking diagnosis

funnel plot

Funnel plot not drawn. Less than 3 points.

Asymetry test p-value = NaN (by Egger's regression)

not enought points

p values plot

Funnel plot not drawn. Less than 3 points.

Sub-groups analysis using all included studies

excluded

Sub-groupsTE95% CIn casesn exposedkI2ROB type of controls unexposed controls (disease free or unspecified)unexposed controls (disease free or unspecified) 1.31[0.39; 4.42]3651 -NAWeber-Schoendorfer, 2008 10.510.01.0