TABLE 1—

Descriptive Statistics for Key Variables Used in Analysis of 45 Developing Countries: Demographic and Health Surveys, 1990–2001

	Mean (SD)	Median	Minimum	Maximum
Independent variables
Total health expenditure per capitaa	117.56 (103.67)	70.50	22.27	485.00
Proportion of the population below national poverty line, %	42.98 (16.18)	40.00	11.70	72.90
Proportion of women who completed fifth grade, %	52.22 (28.12)	50.00	6.90	99.50
Concentration index of women who completed fifth grade	0.30 (0.23)	0.24	0.001	0.87
Proportion of births assisted by a skilled birth attendant, %	52.02 (26.10)	46.90	12.10	99.00
Dependent variables
Proportion of births assisted by a skilled birth attendant—lowest quintile, %	32.45 (29.10)	19.80	2.60	99.20
Proportion of births assisted by a skilled birth attendant—highest quintile, %	83.63 (16.37)	88.50	42.10	100.00

^aYear-2000 international dollars at purchasing parity rates.