Table 1 Mean cognitive score of the study population and individual and interaction effect between indoor air pollution and different household, individual and behavioural characteristics
Variable | Sample | Percentage | Mean cognitive score (SE) | 95% CI | Â | Eta-squared | ||
|---|---|---|---|---|---|---|---|---|
Individual effect size | Interaction effect | |||||||
Effect size | p-value | |||||||
Separate kitchen | ||||||||
 Yes | 24063 | 68.64 | 27.66 (0.04) | 27.58 | 27.74 | 0.009 | 0.050 | * |
 No | 10996 | 31.36 | 25.42 (0.06) | 25.30 | 25.54 | |||
Type of house | ||||||||
 Pucca | 18883 | 53.87 | 28.54 (0.04) | 28.45 | 28.63 | 0.031 | 0.033 | * |
 Semi-pucca | 9845 | 28.10 | 25.84 (0.06) | 25.72 | 25.96 | |||
 Kutcha | 6331 | 18.03 | 23.97 (0.08) | 23.82 | 24.12 | |||
Sanitation | ||||||||
 Yes | 28698 | 81.86 | 27.63 (0.03) | 27.56 | 27.70 | 0.024 | 0.045 | * |
 No | 6361 | 18.14 | 23.92 (0.08) | 23.77 | 24.08 | |||
Electricity | ||||||||
 Yes | 33108 | 94.43 | 27.18 (0.03) | 27.11 | 27.25 | 0.010 | 0.055 | * |
 No | 1951 | 5.57 | 23.15 (0.14) | 22.87 | 23.42 | |||
Age in years | ||||||||
 45–59 | 19360 | 55.22 | 28.04 (0.04) | 27.96 | 28.13 | 0.039 | 0.065 | * |
 60–74 | 12849 | 36.65 | 26.12 (0.06) | 26.01 | 26.23 | |||
 74 +  | 2850 | 8.13 | 23.38 (0.13) | 23.13 | 23.63 | |||
Sex | ||||||||
 Male | 22735 | 64.85 | 28.35 (0.04) | 28.28 | 28.43 | 0.077 | 0.063 | * |
 Female | 12324 | 35.15 | 24.38 (0.06) | 24.27 | 24.50 | |||
Residence | ||||||||
 Urban | 12184 | 34.75 | 29.49 (0.05) | 29.39 | 29.59 | 0.013 | 0.031 | * |
 Rural | 22875 | 65.25 | 25.61 (0.04) | 25.53 | 25.69 | |||
Ever attend school | ||||||||
 Yes | 21296 | 60.74 | 29.88 (0.04) | 29.82 | 29.95 | 0.245 | 0.024 | * |
 No | 13763 | 39.26 | 22.43 (0.05) | 22.34 | 22.52 | |||
Currently working | ||||||||
 Yes | 23119 | 65.94 | 27.58 (0.04) | 27.50 | 27.66 | 0.020 | 0.071 | * |
 No | 11940 | 34.06 | 25.76 (0.06) | 25.64 | 25.88 | |||
Marital status | ||||||||
 Currently in union | 28057 | 80.02 | 27.62 (0.04) | 27.55 | 27.70 | 0.038 | 0.066 | * |
 Currently Not in Union | 7002 | 19.98 | 24.28 (0.08) | 24.12 | 24.44 | |||
Sleeping problem | ||||||||
 No | 21944 | 62.60 | 27.51 (0.04) | 27.43 | 27.60 | 0.009 | 0.066 | * |
 Yes | 13115 | 37.80 | 26.02 (0.06) | 25.92 | 26.13 | |||
Physical exercise | ||||||||
 Every day | 18891 | 53.88 | 27.14 (0.05) | 27.05 | 27.24 | 0.003 | 0.067 | * |
 Sometimes | 5304 | 15.12 | 27.21 (0.08) | 27.04 | 27.38 | |||
 Hardly ever or never | 10864 | 31.00 | 26.51 (0.06) | 26.39 | 26.63 | |||
Reading habit | ||||||||
 Daily | 6568 | 18.73 | 31.85 (0.06) | 31.74 | 31.96 | 0.117 | 0.026 | * |
 Sometimes | 6597 | 18.83 | 29.74 (0.06) | 29.62 | 29.86 | |||
 Never | 21894 | 62.44 | 24.65 (0.04) | 24.57 | 24.73 | |||
Tobacco consumption | ||||||||
 No | 19800 | 56.48 | 27.18 (0.04) | 27.08 | 27.27 | 0.000 | 0.068 | * |
 Yes | 15259 | 43.52 | 26.67 (0.05) | 26.58 | 26.77 | |||
Eat sufficiently | ||||||||
 Yes | 19884 | 56.71 | 27.32 (0.04) | 27.23 | 27.41 | 0.004 | 0.066 | * |
 No | 15175 | 43.29 | 26.49 (0.05) | 26.38 | 26.59 | |||
Self-rated health | ||||||||
 Good | 15751 | 44.93 | 27.92 (0.05) | 27.82 | 28.02 | 0.017 | 0.064 | * |
 Fair | 14270 | 40.70 | 26.54 (0.05) | 26.43 | 26.64 | |||
 Poor | 5038 | 14.37 | 25.14 (0.09) | 24.97 | 25.32 | |||