Limitation of activity due to chronic conditions, United States, 1969 and 1970

Statistics on persons limited in activity due to chronic conditions by age, sex, color, family income, educational attainment, usual activity status, geographic region, and place of residence. Statistics are also presented on chronic conditions reported as causing limitation of activity, duration of limitation, and extent of bed disability days in a year. Based on data collected in household interviews during 1969 and 1970.[by Charles S. Wilder]Includes bibliographical references