Of a total 8807 vaginal deliveries, 1915 were conducted by eight obstetricians and 6892 were conducted by 21 family physicians. Apart from a higher rate of induction of labour in patients of obstetricians, baseline characteristics were comparable between the two groups. Overall rates of use of instruments were similar in the two groups; however, family physicians were less likely than obstetricians to perform an episiotomy (odds ratio [OR] 0.47; 95% confidence intervals [CI]0.41-0