Study findings suggest that exposure to occupational factors such as a temporary work contract, long working hours, shift work, and physical demands during pregnancy increase the risk for low birthweight and preterm delivery.
... Physical work demands significantly predicted low birthweight (≤2,500 g), while having a temporary contract predicted preterm delivery, with corresponding odds ratios (OR) of 4.32 and 4.58, respectively.
Working long hours or doing shift work were associated with a birthweight of 3,000 g or less, but not significantly.
... “This study underlines that more attention should be given to women’s working conditions during pregnancy,” said lead study author Isabelle Niedhammer (University college Dublin, Ireland).