Family planning program activity and patient enrollment rates in the United States, 1969 and 1971.

The effects of demographic characteristics, socioeconomic conditions, health care, and family planning program activity on patient enrollment rates are estimated for 1969 and 1971. Two program activity variables (agencies and clinic locations) have significant, positive net effects in both years. The effect of agencies changed little between 1969 and 1971, and it is the strongest effect in both years. The effect of clinic locations more than doubled between 1969 and 1971, partly due to increased demand. The direct effects of the demographic, socioeconomic, and health care variables are not large, but many of the demographic and socioeconomic variables have substantial indirect effects via health care program activity.