Methotrexate (Pre-conception only)

Syndromes and chromosomal abnormalities

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.
S10348
R37942
Weber-Schoendorfer (Controls exposed to other treatment, sick), 2014 Genetic birth defects preconceptional for kinetic reason prospective cohort exposed to other treatment, sick excluded Adjustment: No Exposed group: MTX (polytherapy or not specified) Indications: Inflammatory diseases Matched MTX less than 3 months before pregnancy 1.73 [0.16;19.30] C
excluded (control group)
1/114   2/394 3 114
ref
S10349
R37961
Weber-Schoendorfer (Controls unexposed, disease free), 2014 Genetic birth defects preconceptional for kinetic reason prospective cohort unexposed, disease free Adjustment: No Exposed group: MTX (polytherapy or not specified) Indications: Inflammatory diseases Matched MTX less than 3 months before pregnancy 1.26 [0.15;10.33] C 1/114   7/1,003 8 114
ref
Total 1 studies 1.26 [0.15;10.33] 8 114
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 Weber-Schoendorfer (Controls unexposed, disease free), 2014Weber-Schoendorfer, 2014 1 1.26[0.15; 10.33]81140%ROB confusion: criticalROB selection: moderateROB classification: criticalROB missing: lowROB mesure: criticalROB reporting: moderate0.55.01.0ROB: A: confusion, B: selection, C: classification, D: missing, E: measurement, F: reportinglow,moderate,serious,critical,unclear,

1: Controls unexposed, disease free;

Sensitivity analysis

SubsetTE95% CIn casesn exposedkI2 Type of studies cohort studiescohort studies 1.26[0.15; 10.33]8114 -NAWeber-Schoendorfer (Controls unexposed, disease free), 2014 1 case control studiescase control studies 0 Type of controls unexposed (disease free or unspecified)unexposed (disease free or unspecified) 1.26[0.15; 10.33]8114 -NAWeber-Schoendorfer (Controls unexposed, disease free), 2014 1 Tags Adjustment   - No  - No 1.26[0.15; 10.33]8114 -NAWeber-Schoendorfer (Controls unexposed, disease free), 2014 1 Exposed group   - MTX (polytherapy or not specified)  - MTX (polytherapy or not specified) 1.26[0.15; 10.33]8114 -NAWeber-Schoendorfer (Controls unexposed, disease free), 2014 1 Indications   - Inflammatory diseases  - Inflammatory diseases 1.26[0.15; 10.33]8114 -NAWeber-Schoendorfer (Controls unexposed, disease free), 2014 1 MatchedMatched 1.26[0.15; 10.33]8114 -NAWeber-Schoendorfer (Controls unexposed, disease free), 2014 1 MTX less than 3 months before pregnancyMTX less than 3 months before pregnancy 1.26[0.15; 10.33]8114 -NAWeber-Schoendorfer (Controls unexposed, disease free), 2014 1 All studiesAll studies 1.26[0.15; 10.33]8114 -NAWeber-Schoendorfer (Controls unexposed, disease free), 2014 10.55.01.0

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 10348

Sub-groupsTE95% CIn casesn exposedkI2ROB type of controls unexposed controls (disease free or unspecified)unexposed controls (disease free or unspecified) 1.26[0.15; 10.33]8114 -NAWeber-Schoendorfer (Controls unexposed, disease free), 2014 1 exposed to other treatment, sick controlsexposed to other treatment, sick controls 1.73[0.16; 19.30]3114 -NAWeber-Schoendorfer (Controls exposed to other treatment, sick), 2014 10.510.01.0