Table 3: Summary of Risk Differences between Voucher and Comparison Sites

	Voucher N=49	Comparison N=20	Risk Difference (CI)	p-value
Providers who perceived a significant increase in patient load - % (n)
Managers	100% (16/16)	0% (0/6)	1 (1,1)	< 0.001
Frontline	100% (32/32)	43% (6/14)	.57 (.31, .83)	< 0.001
Providers who reported a salary increase in last year - % (n)
Managers	69% (11/16)	0% (0/6)	.68 (.46, .91)	0.004
Frontline	33% (11/33)	14% (2/14)	.19 (-.05, .43)	0.182
Providers who perceived an increase in staffing - % (n)
Managers	75% (12/16)	50% (3/6)	.25 (-.20, .70)	0.262
Frontline	79% (26/33)	36% (5/14)	.43 (.14, .72)	0.004

NOTE: The risk difference reported in this table is measuring the absolute difference in risk between the two groups.