Table 1. Socio-demographic characteristics.

Characteristics	Flooded area n (%)	Unflooded area n (%)	Total n (%)	P-value
1. Age (years)
13	30 (27.8%)	0	30 (14.8%)
14	33 (30.6%)	47 (49.5%)	80 (39.4%)
15     16     17	6 (5.6%) 0 39 (36.1%)	0 48 (50.5%) 0	6 (3.0%) 48 (23.6%) 39 (19.2%)	0.000*
2. Gender
Male	47 (43.5%)	40 (42.1%)	87 (42.9%)	0.839
Female	61 (56.5%)	55 (57.9%)	116 (57.1%)
3. Average monthly family income
More than MYR 3001	12 (11.1%)	26 (27.4%)	38 (18.7%)
MYR 1501–3000	24 (22.2%)	16 (16.8%)	40 (19.7%)	0.021
MYR 900–1500	61 (56.5%)	48 (50.5%)	109 (53.7%)
Less than MYR 900	11 (10.2%)	5 (5.3%)	16 (7.9%)
4. Education level
Upper secondary	39 (36.1%)	49 (51.6%)	85 (41.9%)	0.076
Lower secondary	69 (63.9%)	46 (48.4%)	118 (58.1%)
5. Type of house
Bungalow/Village/Flats	88 (81.5)	76 (80.0)	164 (80.8%)	0.789
Terrace/twin	20 (18.5)	19 (20.0%))	39 (19.2%)
6. Was your house affected by flood in Dec 2014?
Yes	83 (76.9)	22 (23.2)	105 (51.7%)	0.000
No	25 (23.1)	73 (76.8)	98 (48.3%)
7. Was your house surrounded by dense vegetation?
Many	22 (20.4)	35 (36.8)	57 (28.1%)	0.015
Moderate	64 (59.3)	50 (52.6)	114 (56.2%)
Low or None	22 (20.3)	10 (10.6)	32 (15.8%)
8. Mosquito abundance in your neighborhood
Severe (>100)	5 (4.6)	5 (5.3)	10 (4.9%)	0.811*
Moderate (50–100)	56 (51.9)	55 (57.9)	111 (54.7%)
Low (<50)	45 (41.7)	33 (34.7)	78 (38.4%)
None	2 (1.9)	2 (2.1)	4 (2.0%)
9. Have you/your family member been infected by dengue recently?
Yes	12 (11.1)	17 (17.9)	29 (14.3%)	0.168
No	96 (88.9)	78 (82.1)	174 (85.7%)
10. Fogging frequency in your neighborhood
Weekly/Biweekly	4 (3.7)	2 (2.1)	6 (3.0%)	0.943*
Monthly	9 (8.3)	8 (8.4)	17 (8.4%)
Seldom (>2 months)	81 (75)	73 (76.8)	154 (75.9%)
Never	14 (13)	12 (12.6)	26 (12.8%)

Comparison using Chi-square test, significant values are in bold, P<0.05. P-values with an asterisk (*) are based on Fisher’s exact test.