3 months review	6 months review	9 months review	12 months review
Intervention arm	65 (65%)	67 (67%)	62 (62%)	55 (55%)
Control arm	48 (48%)	49 (49%)	52 (52%)	34 (34%)
Chi square	5.87	6.65	2.04	8.92
p-value	<0.05	<0.01	0.153	<0.01