Table 5.

Subgroup analyses of cooperation rates in Uganda

	Control	5000 UGX	Stratum-specific RR	P value*	10 000 UGX	Stratum-specific RR	P value*
Gender
Male	282/543 (52%)	308/443 (70%)	1.34 (1.21 to 1.48)	0.023	320/463 (69%)	1.33 (1.20 to 1.47)	0.090
Female	88/155 (57%)	85/144 (59%)	1.04 (0.86 to 1.26)		88/140 (63%)	1.11 (0.92 to 1.34)
Age (years)
<25	222/485 (46%)	245/403 (61%)	1.33 (1.17 to 1.50)	0.43	250/413 (61%)	1.32 (1.17 to 1.50)	0.76
>25	149/343 (43%)	146/275 (53%)	1.22 (1.04 to 1.44)		158/284 (56%)	1.28 (1.09 to 1.50)
Education
<Primary	179/308 (58%)	158/234 (68%)	1.16 (1.02 to 1.32)	0.12	159/231 (69%)	1.18 (1.04 to 1.35)	0.18
>Primary	193/371 (52%)	239/344 (69%)	1.34 (1.18 to 1.51)		250/360 (69%)	1.33 (1.18 to 1.50)
Location
Urban	206/393 (52%)	228/339 (67%)	1.28 (1.14 to 1.45)	0.60	243/344 (71%)	1.35 (1.20 to 1.51)	0.085
Rural	165/291 (57%)	168/242 (69%)	1.22 (1.07 to 1.40)		168/257 (65%)	1.15 (1.01 to 1.32)

Data are n/N (%) and RR (95% CI). Overall interaction terms were not significant for cooperation rates in all subgroups: gender, p=0.066; age, p=0.72; education, p=0.27; location, p=0.18.

*P values obtained from an interaction term between intervention groups and demographic characteristic.

RR, risk ratio; UGX, Ugandan Shilling.