Phenobarbital (All indications)

Assisted deliveries (forceps, vacuum, ...)

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.
S9104
R31256		 Endo (Phenobarbital) (Controls unexposed, disease free), 2004 Forceps deliveries throughout pregnancy retrospective cohort unexposed, disease free excluded Adjustment: No 0.59 [0.03;10.32] C
excluded (control group) 		0/10   53/656 53 10
ref
S9105
R31271		 Endo (Phenobarbital) (Controls unexposed, sick), 2004 Forceps deliveries throughout pregnancy retrospective cohort unexposed, sick Adjustment: No 0.05 [0.00;6.68] C 0/10   0/1 0 10
ref
Total 1 studies 0.05 [0.00;6.68] 0 10
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 Endo (Phenobarbital) (Controls unexposed, sick), 2004Endo, 2004 1 0.05[0.00; 6.68]0100%ROB confusion: NAROB selection: NAROB classification: NAROB missing: NAROB mesure: NAROB reporting: NA0.02.01.0ROB: A: confusion, B: selection, C: classification, D: missing, E: measurement, F: reportinglow,moderate,serious,critical,unclear,

1: Phenobarbital) (Controls unexposed, sick;

Sensitivity analysis

SubsetTE95% CIn casesn exposedkI2 Type of studies cohort studiescohort studies 0.05[0.00; 6.68]-10 -NAEndo (Phenobarbital) (Controls unexposed, sick), 2004 1 case control studiescase control studies 0 Type of controls unexposed, sickunexposed, sick 0.05[0.00; 6.68]-10 -NAEndo (Phenobarbital) (Controls unexposed, sick), 2004 1 Tags Adjustment   - No  - No 0.05[0.00; 6.68]-10 -NAEndo (Phenobarbital) (Controls unexposed, sick), 2004 1 All studiesAll studies 0.05[0.00; 6.68]-10 -NAEndo (Phenobarbital) (Controls unexposed, sick), 2004 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 9104

Sub-groupsTE95% CIn casesn exposedkI2ROB type of controls unexposed controls (disease free or unspecified)unexposed controls (disease free or unspecified) 0.59[0.03; 10.32]5310 -NAEndo (Phenobarbital) (Controls unexposed, disease free), 2004 1 unexposed, sick controlsunexposed, sick controls Out of scale0.05[0.00; 6.68]-10 -NAEndo (Phenobarbital) (Controls unexposed, sick), 2004 10.510.01.0