Table 4 Association of potential in-house environmental and maternal factors with childhood ARI: Adjusted Conditional logistic regression model

Mother’s education

6–12 years of schooling

No/1–5 years schooling

0.83 (0.43, 1.63)

0.60

12 + years of schooling

1.55 (0.59, 4.17)

0.38

In-house crowding

> 3

<=3

2.66 (1.52, 4.71)

< 0.001*

Source of water

Tube well/surface water

Tap/piped water

1.27 (0.64, 2.51)

0.50

Cooking fuel

Unclean

Clean

1.77 (0.9, 3.47)

0.10

Toilet facilities

Unimproved

Improved

4.35 (2.14, 9.26)

< 0.001*

In-house Smoking habit by family members

Yes

No

1.74 (1.01, 3.05)

0.04*

Birth order

≥ 3 born

1st born

4.26 (2.07, 9.03)

< 0.001*

2nd born

1.15 (0.63, 2.09)

0.64

Gestational age

Preterm

Full term

2.44 (1.43, 4.23)

< 0.001*

Exclusive breastfeeding

Yes

No

0.48 (0.28, 0.82)

0.01*

Vaccination

No/Incomplete for age

Complete for age

1.76 (0.77, 4.18)

0.19