Table 3

Risk of having an infant with LBW (<2.5 kg), preterm birth (<37 weeks), or SGA among 6960 newborn infants in a cohort of Swedish hairdressers compared with 6629 newborn infants in a cohort of women from the general population (Referents)

Outcome
1973–821983–941973–94
CohortOR95% CIpOR95% CIpOR95% CIp
Multiple births and major malformations were excluded from the analysed data.
LBW
    Referents1.01.01.0
    Hairdressers1.40.9 to 2.00.101.20.9 to 1.40.231.21.0 to 1.50.06
Preterm birth
    Referents1.01.01.0
    Hairdressers1.20.9 to 1.70.211.00.9 to 1.20.641.10.9 to 1.30.30
SGA
    Referents1.01.01.0
    Hairdressers1.51.0 to 2.10.031.31.0 to 1.70.061.41.1 to 1.70.004