Table 5 Multiple logistic regression analysis of factors associated with RI

Being ethnic Hmong

0.4

0.2 - 0.8

0.01

Being others ethnicities

0.8

0.1 – 4.6

0.84

Aged < 5 years

2.7

2.1 - 3.7

<0.001

Aged 5 – 14 years

1.2

0.9 - 1.7

0.08

Living in Vientiane Province

0.9

0.6 - 1.3

0.61

Living in Sayabouli

1.6

1.1 - 2.6

0.03

Living in Sekong

4.1

2.5 - 6.8

<0.001

Education of household head of primary school

0.7

0.5 - 1.1

0.07

No stove inside the house

0.5

0.4 – 0.8

0.004

Very smoky environment in the house

1.8

1.3 - 2.7

<0.001

Butchering and cooking animal in the past 30 days in household with protection

1.2

0.8 - 1.5

0.28

Animal died in household in the past 30 days

1.01

0.6 - 1.7

0.95