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. 2014 May 29;348:g3361. doi: 10.1136/bmj.g3361

Table 4.

 Sensitivity analysis on pregnancy, fetal, and neonatal outcomes: propensity score matched analysis

No (%) of cases Adjusted odds ratio (95% CI)
Unvaccinated (n=22 145) Vaccinated (n=5776)
Pregnancy outcomes
Pre-eclampsia/eclampsia 675 (3.0) 210 (3.6) 1.19 (1.01 to 1.39)
Gestational diabetes 422 (1.9) 139 (2.4) 1.25 (1.03 to 1.52)
In-hospital maternal death 0 0
Admission to ICU 39 (0.2) 10 (0.2) 1.04 (0.52 to 2.09)
Type of delivery: spontaneous v others 14 841 (67.0) 3875 (67.1) 1.00 (0.94 to 1.07)
Fetal and perinatal outcomes
Stillbirths 49 (0.2) 14 (0.2) 1.10 (0.60 to 2.01)
In-hospital neonatal death 16 (0.1) 4 (0.1) 0.98 (0.33 to 2.95)
Perinatal death 65 (0.3) 18 (0.3) 1.07 (0.63 to 1.82)
Neonatal outcomes
Small for gestational age 2134 (9.6) 523 (9.1) 0.93 (0.84 to 1.03)
Admission to neonatal ICU 416 (1.9) 128 (2.2) 1.16 (0.95 to 1.42)
Neonatal reanimation 174 (0.8) 56 (1.0) 1.24 (0.92 to 1.68)
Composite outcome 646 (2.9) 158 (2.7) 0.92 (0.77 to 1.02)
Congenital malformations:* 873 (3.9) 260 (4.5) 1.14 (0.99 to 1.31)
 Nervous system 40 (0.2) 12 (0.2) 1.15 (0.60 to 2.19)
 Eye 8 (0.04) 3 (0.1) 1.46 (0.39 to 5.50)
 Ear, face, and neck 26 (0.1) 10 (0.2) 1.36 (0.65 to 2.84)
 Congenital heart defects 319 (1.4) 105 (1.8) 1.25 (1.00 to 1.57)
 Respiratory 13 (0.1) 6 (0.1) 2.00 (0.79 to 5.01)
 Orofacial clefts 17 (0.1) 3 (0.1) 0.64 (0.18 to 2.22)
 Digestive system 69 (0.3) 22 (0.4) 1.17 (0.72 to 1.89)
 Abdominal wall defects 2 (0.00) 2 (0.03) 4.00 (0.61 to 28.39)
 Urinary 121 (0.5) 28 (0.5) 0.92 (0.61 to 1.39)
 Genital 6 (0.03) 0
 Limb 266 (1.2) 75 (1.3) 1.06 (0.82 to 1.38)
 Other anomalies 23 (0.1) 6 (0.1) 1.03 (0.42 to 2.54)

ICU=intensive care unit.

*At least one.