Table 1a.

Uptake of screening for diabetic retinopathy by health education status and location of screening

Group/Block	Intervention		DM patients enrolled in NCD register	Screened for DR
	Screening location	Health education		n	% (95% CI)
A	CHC	No	2524	239	9.5% (8.4-10.7)
B	CHC	Yes	2973	389	13.1% (11.9-14.3)
C	PHC	No	2159	433	20.1% (18.4-21.8)
D	PHC	Yes	1298	411	31.7% (29.2-34.2)
Total			8954	1472	16.4% (15.7-17.2)

CHC=community health center; PHC=primary health center, DM=diabetes mellitus, DR=diabetic retinopathy, NCD=noncommunicable disease