OBJECTIVES: This study examined the effect of working conditions, occupational stress, and antenatal leave on risk of small-for-gestational age and premature births in Mexico City. METHODS: Over a 3-month period, 2663 (96.2%) of 2767 women who gave birth at three major hospitals and worked at least 3 months during pregnancy were interviewed shortly after delivery. After the exclusion of multiple gestations and birth defects, 261 (10.0%) small-for-gestational-age and 288 (11.0%) preterm births were identified. RESULTS: For small-for-gestational-age births, working more than 50 hours a week (odds ratio [OR] = 1.59), standing more than 7 hours a day (OR = 1.40), and no antenatal leave (OR = 1.55) were associated with an increased risk. Women with no antenatal leave were also much more likely to give birth prematurely (OR = 3.04). CONCLUSIONS: In this study, arduous working conditions and lack of antenatal leave benefits were found to increase the risk of poor birth outcome in Mexican women. Enforcement of existing antenatal leave laws and provision of comparable benefits for the uninsured may reduce the incidence of small-for-gestational-age births and prematurity.

This study examined risk factors for pre-eclampsia/eclampsia in a population-based sample of pregnant working women in Mexico City. Over a 3-month period, all women who gave birth at three major hospitals and who had worked for at least 3 months during pregnancy were interviewed. After excluding mothers with multiple gestations or infants with birth defects, and previous diagnoses of hypertension, chronic renal disease or diabetes, 131 of 2,436 women (5.4%) had been diagnosed with pre-eclampsia and/or eclampsia. The frequency was much higher among women of low socio-economic status: 12% of uninsured women (SSA) compared with 4.2% of private sector employees (IMSS) and 1.3% of public sector employees (ISSSTE). After adjusting for education, women working in services (OR = 1.68, 95% CI = 1.01, 2.81) and in retail (OR = 1.99, 95% CI = 1.18, 3.37), primiparae (OR = 2.64, 95% CI = 1.65, 4.21) and women whose pregestational weight was > or = 55 kg (OR = 2.02, 95% CI = 1.34, 3.04) were at increased risk. Efforts to develop and evaluate intervention programmes should target hospitals serving the uninsured (SSA) if reduction in the number of preventable maternal deaths in Mexico is to be achieved. Such programmes should also target service and retail workers and identify women with poor glycaemic control early in pregnancy.

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This system has been low cost, timely, and useful for local decision making.

This is the first study to assess the application of gender perspective in Mexican health articles. Similarly to other countries, a very small percentage of authors analyzed sex differences, and a smaller proportion applied gender perspective. Results demonstrate the importance of promoting interdisciplinary research that may promote the elucidation of health inequalities between men and women.