... procedures: an inter-national comparison of New England, England, and Norway.N Engl J Med 1982, 307:1310-1314.13. Sheehan KH: Caesarean section for dystocia: a comparison ofpractices in two countries. ... age distribution caused by theUS data with its higher proportion of 0–4 year olds andpermits fair comparison across countries. Annual preva-lence and the 95% confidence intervals (Cls) estimated ... Med 2003, 157:279-285.10. Epstein AM, Hartley RM, Charlton JR, Harris CM, Jarman B, McNeilBJ: A comparison of ambulatory test ordering for hyperten-sive patients in the United States and England....