Table 3. Odds ratio with 95% confidence intervals for output from logistic regression of high salt intake (>5 grams/day), n=1,628.

Characteristic	Pre-intervention univariable	Pre-intervention multivariable	Post intervention univariable	Post intervention multivariable	Post intervention multivariable + baseline salt intake
Female gender	1.4 (1.1, 1.7)	1.6 (1.2, 2.0)	0.7 (0.5, 1.1)	0.8 (0.6, 1.0)	0.8 (0.6, 1.0)
Age more than 50 years	1.5 (1.2, 1.8)	1.4 (1.1, 1.8)	1.1 (0.7, 1.8)	1.2 (0.9, 1.6)	1.2 (0.9, 1.6)
Educated for ordinary level and higher	0.6 (0.5, 0.9)	0.7 (0.6, 0.9)	0.6 (0.4, 1.1)	0.8 (0.6, 1.1)	0.9 (0.6, 1.2)
Residing in Ampara district	1.6 (1.3, 2.0)	1.4 (1.1, 1.9)	0.7 (0.5, 0.9)	0.7 (0.5, 0.9)	0.6 (0.4, 0.9)
Residing in Monaragala district	0.8 (0.6, 1.0)	0.8 (0.6, 1.1)	1.3 (0.9, 1.7)	1.2 (0.9, 1.7)	1.2 (0.9, 1.7)
Unemployed	0.9 (0.5, 1.5)	0.8 (0.6, 1.2)	1.8 (1.1, 3.2)	2.1 (1.5, 3.0)	2.1 (1.5, 3.0)
Monthly income more than 30,000 LKR	0.9 (0.6, 1.3)	0.8 (0.6, 1.3)	0.7 (0.3, 1.6)	1.2 (0.8, 1.8)	1.2 (0.8, 1.9)
Having hypertension	1.1 (0.8, 1.5)	0.9 (0.6, 1.26)	1.2 (0.7, 2.2)	1.2 (0.8, 1.9)	1.2 (0.8, 1.9)
Having one or more cardiovascular disease	1.3 (0.9, 1.9)	0.9 (0.6, 1.5)	0.6 (0.3, 1.1)	0.8 (0.6, 1.1)	0.8 (0.6, 1.1)
Baseline outcome measure	–	–	–	–	1.5 (0.6, 2.0)

Reference category = residing in Kurunegala district.