Table 6 Incidence rate ratios, IRR (95% confidence intervals) by multivariate analysis of Ae. aegypti pupae per container in relation to socio-demographic and household water management in a suburban and a rural village in Laos and Thailand

 Occupation

Agriculture

35

1

168

1

Commercial

34

1.9 (0.8–4.9)

3

0.1 (0.0–0.8)*

Service

13

0.6 (0.1–3.2)

3

0.9 (0.1–12.5)

Other^a

89

2.3 (1.1–4.8)*

5

1.5 (0.2–9.3)

 Wealth status

Poor

19

1

Intermediate

101

9.3 (3.1–28.1)**

Rich

59

13.2 (4.0–43.3)**

 Tank

No

58

1

Yes

6

5.9 (1.9–19.1)**

 Container location

Indoor

15

1

56

1

Outdoor

79

0.6 (0.2–1.6)

35

0.2 (0.1–0.5)**

Toilet/bathroom

45

0.7 (0.2–2.1)

88

0.4 (0.2–0.9)*

 Frequency of container cleaning

≤ Weekly

71

1

60

1

> Weekly-monthly

92

3.5 (1.9–6.6)**

111

2.6 (1.3–5.1)**

> Monthly-yearly

8

2.4 (0.5–12.2)

8

5.9 (0.6-55.2)

 Lid status

Without lid

107

1

48

142

1

With lid

32

0.3 (0.1–0.9)*

16

0.7 (0.2–2.6)

29

0.1 (0.0–0.4)**