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Table 4 Odds Ratios for pregnancy outcomes according to infections during pregnancy in exposed occupational groups.

From: Risk of infection and adverse outcomes among pregnant working women in selected occupational groups: A study in the Danish National Birth Cohort

  Miscarriage* Preterm birth Very preterm birth Small for gestational age Apgar <7 at 5 min All congenital anomalies
(among live births)
All congenital anomalies
(among live singletons)
Major congenital anomalies
(among live singletons)
Multiple major congenital anomalies
  ORc
(IC95%)
ORa¥
(IC95%)
ORc
(IC95%)
ORa¥
(IC95%)
ORc
(IC95%)
ORa¥
(IC95%)
ORc
(IC95%)
ORa¥
(IC95%)
ORc
(IC95%)
ORa¥
(IC95%)
ORc
(IC95%)
ORa¥
(IC95%)
ORc
(IC95%)
ORa¥
(IC95%)
ORc
(IC95%)
ORa
(IC95%)
ORc
(IC95%)
ORa¥
(IC95%)
Work with patients
Infection                   
No 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.)
Yes 1.29(0.60-1.98) 0.35(0.01-1.00) 1.15(0.92-1.38) 1.17(0.93-1.41) 1.17(0.46-1.88) 1.03(0.40-1.66) 1.04(0.89-1.19) 1.06(0.90-1.22) 0.92(0.60-1.24) 0.99(0.64-1.46) 0.98(0.80-1.16) 1.03(0.84-1.23) 0.99(0.80-1.18) 1.04(0.84-1.24) 1.01(0.81-1.21) 1.07(0.85-1.29) 1.16(0.73-1.59) 1.29(0.80-1.78)
Work with children
Infection                   
No 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.)
Yes 1.53(0.74-2.32) 1.49(0.34-2.64) 0.95(0.77-1.13) 0.92(0.73-1.11) 0.86(0.38-1.34) 0.72(0.30-1.14) 1.04(0.89-1.19) 1.00(0.84-1.16) 0.92(0.62-1.22) 0.95(0.63-1.27) 0.94(0.76-1.12) 0.95(0.76-1.14) 0.93(0.75-1.11) 0.94(0.75-1.13) 0.99(0.78-1.20) 1.00(0.78-1.22) 1.09(0.67-1.47) 1.12(0.68-1.56)
Work with food
Infection                   
No 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.)
Yes 1.19(0.20-2.18) - 0.86(0.46-1.26) 0.84(0.43-1.25) 1.05(0.07-2.03) 0.86(0.03-1.69) 1.35(0.87-1.83) 1.30(0.81-1.79) 0.79(0.18-1.40) 1.17(0.22-2.12) 1.01(0.55-1.47) 1.04(0.55-1.53) 1.06(0.57-1.55) 1.11(0.57-1.65) 1.35(0.68-2.02) 1.43(0.69-2.17) 1.27(0.39-2.15) 1.18(0.34-2.02)
Work with animals
Infection                   
No 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.)
Yes - - 0.88(0.23-1.53) 1.50(0.31-2.69) - - 0.87(0.33-1.41) 1.27(0.41-2.13) 1.36(0.17-2.55) 5.76(0.96-10.12) 9.31(1.15-17.47) 2.93(1.24-4.62) 9.41(1.16-17.66) 2.80(1.23-4.37) 9.41(1.16-17.66) 2.80(1.23-4.37) 3.34(0.34-6.68) 0.24(0.01-1.00)
All exposed groups
Infection                   
No 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.) 1(ref.)
Yes 1.34(0.54-2.24) 0.92(0.32-1.52) 1.03(0.89-1.17) 1.02(0.88-1.14) 0.99(0.54-1.44) 0.86(0.46-1.26) 1.05(0.95-1.15) 1.04(0.93-1.13) 0.94(0.71-1.17) 1.00(0.75-1.25) 0.99(0.86-1.12) 1.01(0.87-1.15) 0.99(0.85-1.15) 1.01(0.87-1.15) 1.04(0.89-1.17) 1.08(0.92-1.24) 1.16(0.85-1.47) 1.23(0.89-1.57)
  1. ¥Adjusted for maternal age, parity, history of miscarriage, socio-occupational status, pre-pregnancy body mass index, smoking habit, alcohol consumption (as well as for sex of child for preterm and very preterm birth and occupation in the group of "all exposed".
  2. ¶EUROCAT Classification.
  3. *In this variable the sample size is small because many of the women who lost the baby along his pregnancy did not answer the second interview.