Carbamazepine (Epilepsy)

Early intrauterine death (< 22 weeks)

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.
S7415
R21827		 Miškov (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2016 Spontaneous abortion during pregnancy (anytime or not specified) prospective cohort exposed to other treatment, sick excluded Adjustment: No 2.06 [0.30;13.97] C
excluded (control group) 		2/13   3/37 5 13
ref
S7043
R19885		 Miškov (Carbamazepine) (Controls unexposed, disease free), 2016 Spontaneous abortion during pregnancy (anytime or not specified) prospective cohort unexposed, disease free excluded Adjustment: No 60.71 [2.73;1349.00] C
excluded (control group) 		2/13   0/128 2 13
ref
S7409
R21799		 Miškov (Carbamazepine) (Controls unexposed, sick), 2016 Spontaneous abortion during pregnancy (anytime or not specified) prospective cohort unexposed, sick Adjustment: No 1.67 [0.06;43.79] C 2/13   0/4 2 13
ref
S6253
R16656		 Arkilo (Carbamazepine), 2015 Spontaneous miscarriages during pregnancy (anytime or not specified) retrospective cohort exposed to other treatment, sick Adjustment: No 0.69 [0.06;8.25] C 1/17   2/24 3 17
ref
S333
R16613		 Tomson (Carbamazepine), 2015 Spontaneous abortions at least 1st trimester prospective cohort exposed to other treatment, sick Adjustment: No 1.01 [0.79;1.29] C 130/1,713   144/1,910 274 1,713
ref
S6290
R16967		 Campbell (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2014 Spontaneous abortions 1st trimester prospective cohort exposed to other treatment, sick Adjustment: No 0.71 [0.49;1.03] C 45/1,718   80/2,198 125 1,718
ref
S5578
R14506		 Diav-Citrin (Carbamazepine), 2001 Miscarriages at least 1st trimester prospective cohort unexposed (general population or NOS) Adjustment: No Matched 0.80 [0.34;1.90] C 8/108   19/210 27 108
ref
Total 5 studies 0.90 [0.74;1.10] 431 3,569
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 Miškov (Carbamazepine) (Controls unexposed, sick), 2016Miškov, 2016 1 1.67[0.06; 43.79]2130%ROB confusion: criticalROB selection: lowROB classification: moderateROB missing: criticalROB mesure: moderateROB reporting: moderate Arkilo (Carbamazepine), 2015Arkilo, 2015 2 0.69[0.06; 8.25]3171%ROB confusion: criticalROB selection: criticalROB classification: criticalROB missing: unclearROB mesure: moderateROB reporting: moderate Tomson (Carbamazepine), 2015Tomson, 2015 3 1.01[0.79; 1.29]2741,71365%ROB confusion: NAROB selection: NAROB classification: NAROB missing: NAROB mesure: NAROB reporting: NA Campbell (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2014Campbell, 2014 4 0.71[0.49; 1.03]1251,71829%ROB confusion: criticalROB selection: lowROB classification: moderateROB missing: unclearROB mesure: moderateROB reporting: moderate Diav-Citrin (Carbamazepine), 2001Diav-Citrin, 2001 5 0.80[0.34; 1.90]271085%ROB confusion: NAROB selection: NAROB classification: NAROB missing: NAROB mesure: NAROB reporting: NA Total (5 studies) I2 = 0% 0.90[0.74; 1.10]4313,5690.25.01.0ROB: A: confusion, B: selection, C: classification, D: missing, E: measurement, F: reportinglow,moderate,serious,critical,unclear,

1: Carbamazepine) (Controls unexposed, sick; 2: Carbamazepine; 3: Carbamazepine; 4: Carbamazepine) (Controls exposed to Lamotrigine, sick; 5: Carbamazepine;

Sensitivity analysis

SubsetTE95% CIn casesn exposedkI2 Type of studies cohort studiescohort studies 0.90[0.74; 1.10]4313,5690%NAMiškov (Carbamazepine) (Controls unexposed, sick), 2016 Arkilo (Carbamazepine), 2015 Tomson (Carbamazepine), 2015 Campbell (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2014 Diav-Citrin (Carbamazepine), 2001 5 case control studiescase control studies 0 Type of controls unexposed (disease free or unspecified)unexposed (disease free or unspecified) 0.80[0.34; 1.90]27108 -NADiav-Citrin (Carbamazepine), 2001 1 unexposed, sickunexposed, sick 1.67[0.06; 43.79]213 -NAMiškov (Carbamazepine) (Controls unexposed, sick), 2016 1 exposed to other treatment, sickexposed to other treatment, sick 0.89[0.69; 1.14]4023,44816%NAArkilo (Carbamazepine), 2015 Tomson (Carbamazepine), 2015 Campbell (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2014 3 Tags Adjustment   - No  - No 0.90[0.74; 1.10]4313,5690%NAMiškov (Carbamazepine) (Controls unexposed, sick), 2016 Arkilo (Carbamazepine), 2015 Tomson (Carbamazepine), 2015 Campbell (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2014 Diav-Citrin (Carbamazepine), 2001 5 MatchedMatched 0.80[0.34; 1.90]27108 -NADiav-Citrin (Carbamazepine), 2001 1 All studiesAll studies 0.90[0.74; 1.10]4313,5690%NAMiškov (Carbamazepine) (Controls unexposed, sick), 2016 Arkilo (Carbamazepine), 2015 Tomson (Carbamazepine), 2015 Campbell (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2014 Diav-Citrin (Carbamazepine), 2001 50.25.01.0

Publication bias and p-hacking diagnosis

funnel plot
0.0-3.93.82.0010.000Miškov (Carbamazepine) (Controls unexposed, sick), 2016Arkilo (Carbamazepine), 2015Tomson (Carbamazepine), 2015Campbell (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2014Diav-Citrin (Carbamazepine), 2001

Asymetry test p-value = 0.7540 (by Egger's regression)

slope=-0.0673 (0.1435); intercept=-0.2173 (0.6329); t=0.3433; p=0.7540

p values plot
0.01.00.01.0

Sub-groups analysis using all included studies

excluded 7415, 7043

Sub-groupsTE95% CIn casesn exposedkI2ROB type of controls unexposed controls (disease free or unspecified)unexposed controls (disease free or unspecified) 5.35[0.08; 358.57]2912186%NAMiškov (Carbamazepine) (Controls unexposed, disease free), 2016 Diav-Citrin (Carbamazepine), 2001 2 unexposed, sick controlsunexposed, sick controls 1.67[0.06; 43.79]213 -NAMiškov (Carbamazepine) (Controls unexposed, sick), 2016 1 exposed to other treatment, sick controlsexposed to other treatment, sick controls 0.91[0.73; 1.12]4073,4613%NAMiškov (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2016 Arkilo (Carbamazepine), 2015 Tomson (Carbamazepine), 2015 Campbell (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2014 40.510.01.0