Table 3.

Results of linear regression on factors associated with knowledge score

Variable	Univariate analysis				Multivariate analysis
	β	SE	P	CI	β	SE	P	CI
Age
>50 years (vs.)
<20 years	1.00	0.17	<0.01	0.67-1.33	0.72	0.16	<0.01	0.41-1.03
21-30 years	1.19	0.12	<0.01	0.96-1.42	0.52	0.12	<0.01	0.29-0.76
31-40 years	0.76	0.11	<0.01	0.55-0.98	0.52	0.11	<0.01	0.32-0.73
41-50 years	0.43	0.10	<0.01	0.24-0.63	0.26	0.09	0.01	0.08-0.44
Sex
Female (vs.)
Male	0.10	0.08	0.17	-0.05-0.25	0.04	0.07	0.62	-0.1-0.18
Education
Illiterate (vs.)
School level	0.28	0.11	0.010	0.07-0.49	0.13	0.11	0.23	-0.08-0.33
Graduate level	1.62	0.11	<0.001	1.40-1.84	1.36	0.12	<0.01	1.13-1.59
Centre
OZS2 (Salem)(vs.)
RZC1 (Chennai)	-2.12	0.12	<0.01	-2.36--1.88	-2.03	0.12	<0.01	-2.27--1.8
OZC3 (Coimbatore)	-1.89	0.12	<0.01	-2.13--1.64	-1.89	0.12	<0.01	-2.13--1.65
GZP4 (Pondicherry)	-1.13	0.11	<0.01	-1.34--0.91	-1.28	0.11	<0.01	-1.49--1.07
GZT5 (Tirunelveli)	-2.42	0.11	<0.01	-2.64--2.21	-2.53	0.11	<0.01	-2.74--2.32

β- regression co-efficient; SE-standard error; P-P value; CI-confidence interval