TABLE 2—

Results of Multivariate Regression Analysis of the Effect of Independent Variables on the Ratio of Utilization of Skilled Birth Attendants Between the Poorest and Richest Quintiles in 45 Developing Countries: Demographic and Health Surveys, 1990–2001

Independent Variable	Ratio of Utilization of Skilled Birth Attendant of Lowest to Highest Wealth Quintile (b)
Total health expenditure per capita	0.13649 (.028)
Proportion below national poverty line	−0.00105 (.572)
Proportion of women who completed fifth grade	0.00152 (.708)
Concentration index of women who completed fifth grade	−0.22744 (.583)
Three-way interaction among fifth grade education, concentration index of education, and total health expenditure per capita	−0.00591 (.002)
Adjusted R2	0.5886