Phenytoin (All indications)

Caesarean

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.
S9187
R31774		 Artama (Phenytoin) (Controls exposed to Lamotrigine, sick), 2013 Caesarean section during pregnancy (anytime or not specified) population based cohort retrospective exposed to other treatment, sick excluded Adjustment: No 0.18 [0.02;1.35] C
excluded (control group) 		1/26   32/173 33 26
ref
S9188
R31786		 Artama (Phenytoin) (Controls unexposed, disease free), 2013 Caesarean section during pregnancy (anytime or not specified) population based cohort retrospective unexposed, disease free excluded Adjustment: Yes 0.22 [0.03;1.64]
excluded (control group) 		1/26   114,791/721,948 114,792 26
ref
S9190
R31810		 Artama (Phenytoin) (Controls unexposed, sick), 2013 Caesarean section during pregnancy (anytime or not specified) population based cohort retrospective unexposed, sick Adjustment: Yes 0.19 [0.03;1.40] 1/26   331/1,800 332 26
ref
Total 1 studies 0.19 [0.03;1.30] 332 26
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 Artama (Phenytoin) (Controls unexposed, sick), 2013Artama, 2013 1 0.19[0.03; 1.40]332260%ROB confusion: seriousROB selection: lowROB classification: criticalROB missing: lowROB mesure: moderateROB reporting: moderate0.02.01.0ROB: A: confusion, B: selection, C: classification, D: missing, E: measurement, F: reportinglow,moderate,serious,critical,unclear,

1: Phenytoin) (Controls unexposed, sick;

Sensitivity analysis

SubsetTE95% CIn casesn exposedkI2 Type of studies cohort studiescohort studies 0.19[0.03; 1.30]33226 -NAArtama (Phenytoin) (Controls unexposed, sick), 2013 1 case control studiescase control studies 0 Type of controls unexposed, sickunexposed, sick 0.19[0.03; 1.30]33226 -NAArtama (Phenytoin) (Controls unexposed, sick), 2013 1 Tags Adjustment   - Yes  - Yes 0.19[0.03; 1.30]33226 -NAArtama (Phenytoin) (Controls unexposed, sick), 2013 1 All studiesAll studies 0.19[0.03; 1.30]33226 -NAArtama (Phenytoin) (Controls unexposed, sick), 2013 10.010.01.0

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 9187, 9188

Sub-groupsTE95% CIn casesn exposedkI2ROB type of controls unexposed controls (disease free or unspecified)unexposed controls (disease free or unspecified) Out of scale0.22[0.03; 1.63]114,79226 -NAArtama (Phenytoin) (Controls unexposed, disease free), 2013 1 unexposed, sick controlsunexposed, sick controls Out of scale0.19[0.03; 1.30]33226 -NAArtama (Phenytoin) (Controls unexposed, sick), 2013 1 exposed to other treatment, sick controlsexposed to other treatment, sick controls Out of scale0.18[0.02; 1.35]3326 -NAArtama (Phenytoin) (Controls exposed to Lamotrigine, sick), 2013 10.510.01.0