Outcome | |||||||||
---|---|---|---|---|---|---|---|---|---|
1973–82 | 1983–94 | 1973–94 | |||||||
Cohort | OR | 95% CI | p | OR | 95% CI | p | OR | 95% CI | p |
Multiple births and major malformations were excluded from the analysed data. | |||||||||
LBW | |||||||||
Referents | 1.0 | 1.0 | 1.0 | ||||||
Hairdressers | 1.4 | 0.9 to 2.0 | 0.10 | 1.2 | 0.9 to 1.4 | 0.23 | 1.2 | 1.0 to 1.5 | 0.06 |
Preterm birth | |||||||||
Referents | 1.0 | 1.0 | 1.0 | ||||||
Hairdressers | 1.2 | 0.9 to 1.7 | 0.21 | 1.0 | 0.9 to 1.2 | 0.64 | 1.1 | 0.9 to 1.3 | 0.30 |
SGA | |||||||||
Referents | 1.0 | 1.0 | 1.0 | ||||||
Hairdressers | 1.5 | 1.0 to 2.1 | 0.03 | 1.3 | 1.0 to 1.7 | 0.06 | 1.4 | 1.1 to 1.7 | 0.004 |