No of pairs | No of discordant pairs2-150 | Odds ratio2-160 | |
Male sex | 119 | 30/25 | 1.2 (0.7 to 2.1) |
Traditional building construction | 117 | 17/14 | 1.2 (0.6 to 2.6) |
Traffic2-151 | 117 | 21/12 | 1.8 (0.8 to 3.9) |
Elder siblings | 117 | 24/26 | 0.9 (0.5 to 1.7) |
Bed sharing | 119 | 22/24 | 0.9 (0.5 to 1.6) |
Cattle2-164 kept inside the house at night | 117 | 7/19 | 0.4 (0.1 to 0.9) |
Poultry kept inside the house | 116 | 23/11 | 2.1 (1.0 to 4.3) |
Pets2-152 | 117 | 22/23 | 1.0 (0.5 to 1.7) |
One or more smoking2-153 family members | 116 | 22/21 | 1.1 (0.6 to 2.0) |
Two or more smoking2-153family members | 115 | 25/11 | 2.3 (1.1 to 4.6) |
Indoor bio smoke2-154 | 99 | 13/7 | 1.9 (0.7 to 4.7) |
↵2-150 Number of pairs were case exposed and control unexposed/number of pairs were case unexposed and control exposed.
↵2-160 Mantel-Haenszel matched unadjusted odds ratio (95% CI).
↵2-151 Based on whether the house was located near a road with heavy traffic or not.
↵2-164 Buffalo, cow, horse, goat or pig.
↵2-152 Pets = cat, dog, other (parrot, rabbit).
↵2-153 Smoking daily inside the house.
↵2-154 Categories based on kind of cooking place; yes=open fire or burning stove without a flue, no=gas or kerosene stove.