Carbamazepine (All indications)

Low Apgar score (< 7) (at 1 min)

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.
S9760
R34844
Bank (Carbamazepine) (Mixed indications), 2017 Apgar < 7 at 1 minute during pregnancy (anytime or not specified) prospective cohort exposed to other treatment, sick Adjustment: No 2.43 [0.19;30.63] C 1/8   2/36 3 8
ref
S9598
R33993
Artama (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2013 1-min Apgar <7 3rd trimester population based cohort retrospective exposed to other treatment, sick excluded Adjustment: No 0.67 [0.32;1.42] C
excluded (control group)
36/904   9/154 45 904
ref
S9599
R34005
Artama (Carbamazepine) (Controls unexposed, disease free), 2013 1-min Apgar <7 3rd trimester population based cohort retrospective unexposed, disease free excluded Adjustment: Yes 1.04 [0.74;1.45]
excluded (control group)
36/904   27,939/689,482 27,975 904
ref
S9600
R34017
Artama (Carbamazepine) (Controls unexposed, sick), 2013 1-min Apgar <7 3rd trimester population based cohort retrospective unexposed, sick Adjustment: Yes 1.06 [0.70;1.61] 36/904   69/1,708 105 904
ref
S9640
R34297
Pennell (Carbamazepine), 2012 Apgar score (at 1 minute < 7) during pregnancy (anytime or not specified) prospective cohort exposed to other treatment, sick Adjustment: No 2.55 [0.76;8.60] C 9/91   4/97 13 91
ref
S9615
R34172
Endo (Carbamazepine) (Controls unexposed, disease free), 2004 Apgar score (<8 at 1min) throughout pregnancy retrospective cohort unexposed, disease free excluded Adjustment: No 0.71 [0.09;5.89] C
excluded (control group)
1/8   47/280 48 8
ref
S9616
R34187
Endo (Carbamazepine) (Controls unexposed, sick), 2004 Apgar score (<8 at 1min) throughout pregnancy retrospective cohort unexposed, sick Adjustment: No 0.23 [0.00;17.06] C 1/8   0/1 1 8
ref
S9740
R34696
Van der Pol (Carbamazepine) (Controls unexposed, disease free), 1991 Apgar scores (1 minute <7) throughout pregnancy prospective cohort unexposed, disease free excluded Adjustment: No Matched 1.00 [0.11;9.51] C
excluded (control group)
1/11   5/55 6 11
ref
S9741
R34721
Van der Pol (Carbamazepine) (Controls unexposed, sick), 1991 Apgar scores (1 minute <7) throughout pregnancy prospective cohort unexposed, sick Adjustment: No 2.10 [0.12;37.12] C 1/11   1/22 2 11
ref
Total 5 studies 1.18 [0.80;1.73] 124 1,022
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 Bank (Carbamazepine) (Mixed indications), 2017Bank, 2017 1 2.43[0.19; 30.63]382%ROB confusion: criticalROB selection: lowROB classification: lowROB missing: lowROB mesure: moderateROB reporting: moderate Artama (Carbamazepine) (Controls unexposed, sick), 2013Artama, 2013 2 1.06[0.70; 1.61]10590485%ROB confusion: seriousROB selection: lowROB classification: criticalROB missing: lowROB mesure: moderateROB reporting: moderate Pennell (Carbamazepine), 2012Pennell, 2012 3 2.55[0.76; 8.60]139110%ROB confusion: NAROB selection: NAROB classification: NAROB missing: NAROB mesure: NAROB reporting: NA Endo (Carbamazepine) (Controls unexposed, sick), 2004Endo, 2004 4 0.23[0.00; 17.06]181%ROB confusion: NAROB selection: NAROB classification: NAROB missing: NAROB mesure: NAROB reporting: NA Van der Pol (Carbamazepine) (Controls unexposed, sick), 1991Van der Pol, 1991 5 2.10[0.12; 37.12]2112%ROB confusion: criticalROB selection: lowROB classification: moderateROB missing: lowROB mesure: moderateROB reporting: moderate Total (5 studies) I2 = 0% 1.18[0.80; 1.73]1241,0220.210.01.0ROB: A: confusion, B: selection, C: classification, D: missing, E: measurement, F: reportinglow,moderate,serious,critical,unclear,

1: Carbamazepine) (Mixed indications; 2: Carbamazepine) (Controls unexposed, sick; 3: Carbamazepine; 4: Carbamazepine) (Controls unexposed, sick; 5: Carbamazepine) (Controls unexposed, sick;

Sensitivity analysis

SubsetTE95% CIn casesn exposedkI2 Type of studies cohort studiescohort studies 1.18[0.80; 1.73]1241,0220%NABank (Carbamazepine) (Mixed indications), 2017 Artama (Carbamazepine) (Controls unexposed, sick), 2013 Pennell (Carbamazepine), 2012 Endo (Carbamazepine) (Controls unexposed, sick), 2004 Van der Pol (Carbamazepine) (Controls unexposed, sick), 1991 5 case control studiescase control studies 0 Type of controls unexposed, sickunexposed, sick 1.06[0.70; 1.60]1089230%NAArtama (Carbamazepine) (Controls unexposed, sick), 2013 Endo (Carbamazepine) (Controls unexposed, sick), 2004 Van der Pol (Carbamazepine) (Controls unexposed, sick), 1991 3 exposed to other treatment, sickexposed to other treatment, sick 2.53[0.85; 7.56]16990%NABank (Carbamazepine) (Mixed indications), 2017 Pennell (Carbamazepine), 2012 2 Tags Adjustment   - No  - No 2.18[0.80; 5.89]191180%NABank (Carbamazepine) (Mixed indications), 2017 Pennell (Carbamazepine), 2012 Endo (Carbamazepine) (Controls unexposed, sick), 2004 Van der Pol (Carbamazepine) (Controls unexposed, sick), 1991 4   - Yes  - Yes 1.06[0.70; 1.61]105904 -NAArtama (Carbamazepine) (Controls unexposed, sick), 2013 1 All studiesAll studies 1.18[0.80; 1.73]1241,0220%NABank (Carbamazepine) (Mixed indications), 2017 Artama (Carbamazepine) (Controls unexposed, sick), 2013 Pennell (Carbamazepine), 2012 Endo (Carbamazepine) (Controls unexposed, sick), 2004 Van der Pol (Carbamazepine) (Controls unexposed, sick), 1991 50.110.01.0

Publication bias and p-hacking diagnosis

funnel plot
0.0-5.25.32.6350.000Bank (Carbamazepine) (Mixed indications), 2017Artama (Carbamazepine) (Controls unexposed, sick), 2013Pennell (Carbamazepine), 2012Endo (Carbamazepine) (Controls unexposed, sick), 2004Van der Pol (Carbamazepine) (Controls unexposed, sick), 1991

Asymetry test p-value = 0.5455 (by Egger's regression)

slope=0.0399 (0.2557); intercept=0.3963 (0.5833); t=0.6795; p=0.5455

p values plot
0.01.00.01.0

Sub-groups analysis using all included studies

excluded 9740, 9615, 9598, 9599

Sub-groupsTE95% CIn casesn exposedkI2ROB type of controls unexposed controls (disease free or unspecified)unexposed controls (disease free or unspecified) 1.03[0.74; 1.43]28,0299230%NAArtama (Carbamazepine) (Controls unexposed, disease free), 2013 Endo (Carbamazepine) (Controls unexposed, disease free), 2004 Van der Pol (Carbamazepine) (Controls unexposed, disease free), 1991 3 unexposed, sick controlsunexposed, sick controls 1.06[0.70; 1.60]1089230%NAArtama (Carbamazepine) (Controls unexposed, sick), 2013 Endo (Carbamazepine) (Controls unexposed, sick), 2004 Van der Pol (Carbamazepine) (Controls unexposed, sick), 1991 3 exposed to other treatment, sick controlsexposed to other treatment, sick controls 1.28[0.46; 3.60]611,00348%NABank (Carbamazepine) (Mixed indications), 2017 Artama (Carbamazepine) (Controls exposed to Lamotrigine, sick), 2013 Pennell (Carbamazepine), 2012 30.510.01.0