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Methotrexate (Pre-conception only)
Overall results
Study description
Excluded studies
Table
Graphic
auto
during pregnancy (anytime or not specified)
1st trimester
2nd trimester
3rd trimester
2nd and/or 3rd trimester
throughout pregnancy
early pregnancy
days before delivery
late pregnancy
preconception-only
periconceptional
preconceptional for kinetic reason
at least 1st trimester
3 months (or more) before pregnancy or during pregnancy
1st and 2nd trimester
3 months or more before pregnancy or1st trimester
Whatever the period exposition
individual studies
Outcome
TE
95% CI
n cases
n exposed
k
Pub. bias
Congenital malformations
All congenital malformations (majors, minors, majors and minors, or unspecified)
Matsui, 2003 Weber-Schoendorfer (Controls unexposed, disease free), 2014 Dawson, 2014 Svirsky, 2017 Howren, 2020
5
1.41
[
0.59
; 3.38]
27,659
214
not evaluable
Major congenital malformations
Dawson, 2014 Weber-Schoendorfer (Controls unexposed, disease free), 2014 Svirsky, 2017
3
1.24
[
0.45
; 3.42]
27,658
210
not evaluable
Minor congenital malformations
Weber-Schoendorfer (Controls unexposed, disease free), 2014
1
1.96
[
0.73
; 5.26]
28
113
not evaluable
Syndromes and chromosomal abnormalities
Weber-Schoendorfer (Controls unexposed, disease free), 2014
1
1.26
[
0.15
; 10.33]
8
114
not evaluable
Congenital heart defects
Dawson, 2014
1
2.29
[
0.45
; 11.83]
11,022
7
not evaluable
Growth parameters and prematurity
Small for gestational age (weight)
Svirsky, 2009 Howren, 2020
2
0.82
[
0.27
; 2.47]
6
45
not evaluable
Low birth weight (< 2500g)
Svirsky, 2009
1
0.81
[
0.27
; 2.37]
18
37
not evaluable
Preterm (< 37 weeks)
Svirsky, 2009
1
0.82
[
0.19
; 3.51]
9
37
not evaluable
Intrauterine deaths
Early intrauterine death (< 22 weeks)
Svirsky, 2009 Weber-Schoendorfer (Controls unexposed, disease free), 2014 Svirsky, 2017
3
0.55
[
0.18
; 1.70]
138
274
not evaluable
Late intrauterine deaths (> 22 weeks)
Svirsky, 2009 Weber-Schoendorfer (Controls unexposed, disease free), 2014 Svirsky, 2017
3
1.74
[
0.27
; 11.38]
6
274
not evaluable
Therapeutic terminations of pregnancy
Svirsky, 2009 Weber-Schoendorfer (Controls unexposed, disease free), 2014 Svirsky, 2017
3
1.42
[
0.51
; 3.97]
22
274
not evaluable
Elective/induced termination of pregnancy
Weber-Schoendorfer (Controls unexposed, disease free), 2014
1
2.40
[
1.06
; 5.42]
62
136
not evaluable
Intrauterine deaths (as a whole or unspecified)
Svirsky, 2009 Svirsky, 2017
2
0.37
[
0.09
; 1.53]
57
138
not evaluable
0.0
20.0
1.0