Carbamazepine (All indications)

Gestational diabetes

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.
S12674
R47885
Mari (Carbamazepine), 2022 Gestational diabetes throughout pregnancy retrospective cohort exposed to other treatment, sick Adjustment: No 0.11 [0.00;2.96] C 0/29   1/11 1 29
ref
S9602
R34034
Aydin (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2020 Gestational diabetes mellitus throughout pregnancy retrospective cohort exposed to other treatment, sick excluded Adjustment: No 1.44 [0.05;40.54] C
excluded (control group)
1/15   0/7 1 15
ref
S9603
R34044
Aydin (Carbamazepine) (Controls unexposed, sick), 2020 Gestational diabetes mellitus throughout pregnancy retrospective cohort unexposed, sick Adjustment: No 1.50 [0.09;26.01] C 1/15   1/22 2 15
ref
S9640
R34295
Pennell (Carbamazepine), 2012 Gestational Diabetes during pregnancy (anytime or not specified) prospective cohort exposed to other treatment, sick Adjustment: No 0.20 [0.02;1.76] C 1/92   5/97 6 92
ref
S9729
R34642
McVearry (Carbamazepine), 2009 Gestational diabetes during pregnancy (anytime or not specified) prospective cohort exposed to other treatment, sick Adjustment: No 1.13 [0.07;19.74] C 1/16   1/18 2 16
ref
Total 4 studies 0.42 [0.11;1.61] 11 152
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 Mari (Carbamazepine), 2022Mari, 2022 1 0.11[0.00; 2.96]12917%ROB confusion: criticalROB selection: lowROB classification: moderateROB missing: lowROB mesure: moderateROB reporting: unclear Aydin (Carbamazepine) (Controls unexposed, sick), 2020Aydin, 2020 2 1.50[0.09; 26.01]21522%ROB confusion: criticalROB selection: criticalROB classification: moderateROB missing: lowROB mesure: moderateROB reporting: moderate Pennell (Carbamazepine), 2012Pennell, 2012 3 0.20[0.02; 1.76]69239%ROB confusion: NAROB selection: NAROB classification: NAROB missing: NAROB mesure: NAROB reporting: NA McVearry (Carbamazepine), 2009McVearry, 2009 4 1.13[0.07; 19.74]21622%ROB confusion: NAROB selection: NAROB classification: NAROB missing: NAROB mesure: NAROB reporting: NA Total (4 studies) I2 = 0% 0.42[0.11; 1.61]111520.05.01.0ROB: A: confusion, B: selection, C: classification, D: missing, E: measurement, F: reportinglow,moderate,serious,critical,unclear,

1: Carbamazepine; 2: Carbamazepine) (Controls unexposed, sick; 3: Carbamazepine; 4: Carbamazepine;

Sensitivity analysis

SubsetTE95% CIn casesn exposedkI2 Type of studies cohort studiescohort studies 0.42[0.11; 1.61]111520%NAMari (Carbamazepine), 2022 Aydin (Carbamazepine) (Controls unexposed, sick), 2020 Pennell (Carbamazepine), 2012 McVearry (Carbamazepine), 2009 4 case control studiescase control studies 0 Type of controls unexposed, sickunexposed, sick 1.50[0.09; 26.01]215 -NAAydin (Carbamazepine) (Controls unexposed, sick), 2020 1 exposed to other treatment, sickexposed to other treatment, sick 0.29[0.06; 1.34]91370%NAMari (Carbamazepine), 2022 Pennell (Carbamazepine), 2012 McVearry (Carbamazepine), 2009 3 Tags Adjustment   - No  - No 0.42[0.11; 1.61]111520%NAMari (Carbamazepine), 2022 Aydin (Carbamazepine) (Controls unexposed, sick), 2020 Pennell (Carbamazepine), 2012 McVearry (Carbamazepine), 2009 4 All studiesAll studies 0.42[0.11; 1.61]111520%NAMari (Carbamazepine), 2022 Aydin (Carbamazepine) (Controls unexposed, sick), 2020 Pennell (Carbamazepine), 2012 McVearry (Carbamazepine), 2009 40.05.01.0

Publication bias and p-hacking diagnosis

funnel plot
0.0-3.93.12.0100.000Mari (Carbamazepine), 2022Aydin (Carbamazepine) (Controls unexposed, sick), 2020Pennell (Carbamazepine), 2012McVearry (Carbamazepine), 2009

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

not enought points

p values plot
0.01.00.01.0

Sub-groups analysis using all included studies

excluded 9602

Sub-groupsTE95% CIn casesn exposedkI2ROB type of controls unexposed, sick controlsunexposed, sick controls 1.50[0.09; 26.01]215 -NAAydin (Carbamazepine) (Controls unexposed, sick), 2020 1 exposed to other treatment, sick controlsexposed to other treatment, sick controls Out of scale0.38[0.10; 1.54]101520%NAMari (Carbamazepine), 2022 Aydin (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2020 Pennell (Carbamazepine), 2012 McVearry (Carbamazepine), 2009 40.510.01.0