Table 3.

Summary of regression coefficient (95 % CI and p-values) from Poisson model of dengue seroprevalence in Malaysia between 2001 and 2013

Variable	Coefficient	95 % CI	p-value
Age group (in year)
0–9	0		-
10–19	0 · 88	(0 · 70, 1 · 07)	<0 · 0001
20–29	1 · 24	(1 · 07, 1 · 41)	<0 · 0001
30–39	1 · 42	(1 · 25, 1 · 60)	<0 · 0001
40–49	1 · 56	(1 · 39, 1 · 73)	<0 · 0001
50–59	1 · 63	(1 · 46, 1 · 80)	<0 · 0001
60–69	1 · 69	(1 · 51, 1 · 86)	<0 · 0001
> 70	1 · 73	(1 · 55, 1 · 91)	<0 · 0001
Location
Urban (referent)	0	-	-
Rural	-600.91	(-1042, -160)	0 · 0008
Calendar year	-0 · 0009	-	<0 · 0001
Calendar year-by-Location interaction
All years at Urban location (referent)	0	-	-
All years at Rural location	0 · 30	(0 · 08, 0 · 52)	0 · 0008
Age-by-Location interaction
All ages at Urban location (referent)	0	-	-
Age 0–9 at Rural location	0	-	-
Age 10–19 at Rural location	-0 · 07	(-0 · 49, 0 · 35)	0 · 742
Age 20–29 at Rural location	0 · 06	(-0 · 41, 0 · 54)	0 · 799
Age 30–39 at Rural location	0 · 24	(-0 · 21, 0 · 68)	0 · 294
Age 40–49 at Rural location	0 · 45	(0 · 04, 0 · 86)	0 · 031
Age 50–59 at Rural location	0 · 58	(0 · 18, 0 · 98)	0 · 004
Age 60–69 at Rural location	0 · 67	(0 · 26, 1 · 07)	0 · 001
Age >70 at Rural location	0 · 81	(0 · 40, 1 · 23)	<0 · 0001
Calendar year-by-Age interaction	-0 · 003 to 0 · 05	-	0 · 06 to 0 · 9