Main socio-economic characteristics of mothers in 12 provinces of Laos.

*mean (95% confidence interval);**This classification is used to roughly describe ethnic groups belonging to lowlands, midlands and highlands though people may have migrated since then from their original residency.£834 (78.9%) reported an occupation: 73 (6.9%) civil servants, 60 (5.7%) shop keepers, 18 (1.7%) workers, 16 (1.5%) other occupations.££At list one visit.£££In US dollars: US = 8000 Lao kip.