Kønsfordeling, social-status, måling, sengedage, kirurgi. Regional variations in hospital use: Introduction and overview. Small aera variations. Variations in hospital use across cities. Measuring community-hospital services in michigan. On the comparison of high- est and lowest surgery rates in small-area studies. Regional varia- tions in surgery and medicare use. Variations in surgery rates and the supply of surgeons. Selected methodological topics in measuring regional variations. Population-based small-unit analysis of health care. Health statistics based on discrete population groups. Regio- variations and public policy. Variations in hospital use, inappro- priate use, and public-policy consequences.