Occupational lifting during pregnancy and risk of fetal death in a large national cohort study
Research output: Contribution to journal › Journal article › Research › peer-review
OBJECTIVE: The aim of the present study was to examine the association between occupational lifting and the risk of fetal death according to gestational age. METHODS: We used data from the Danish National Birth Cohort (1996-2002). Among 71 500 occupationally active women, 2886 experienced a fetal death. Information on lifting and relevant covariates was collected in interviews around week 16 of pregnancy. The majority of fetal losses (N=2032) happened before the scheduled interview, and exposure data were collected retrospectively from these women. We analyzed early miscarriage (=12 weeks), late miscarriage (13-21 weeks), and stillbirth (=22 weeks), using Cox-regression models with gestational age as the underlying time variable. RESULTS: The adjusted early miscarriage risk increased with frequency of daily lifts and total burden lifted per day. For example, the hazard ratio was 1.38 [95% confidence interval (95% CI) 1.10-1.74] for a total weight load per day of 101-200 kg and 2.02 (95% CI 1.23-3.33) for a daily load >1000 kg as compared to non-lifters (P for trend
Original language | English |
---|---|
Journal | Scandinavian Journal of Work, Environment & Health |
Volume | 39 |
Issue number | 4 |
Pages (from-to) | 335-42 |
ISSN | 0355-3140 |
DOIs | |
Publication status | Published - Jul 2013 |
ID: 122549116