The number and percent of births to unwed mothers under age 20 for those mothers whose age and marital status are known.
Pennsylvania Department of Health, Bureau of Health Statistics and Research. Pennsylvania Vital Statistics annual report series. The Pennsylvania Department of Health specifically disclaims responsibility for any analyses, interpretations, or conclusions.
ND = DATA NOT DISPLAYED. Statistics (rates, ratios, percents) are not calculated and displayed for counts less than 10 (or less than 3 for Bayesian/Nearest Neighbor rates). This is due to the unreliability of statistics based on small numbers of events.