Table 2 Estimation of treatment effects of indoor air pollution on the overall cognitive score through regression adjusting for housing, individual and behavioural characteristics

Separate kitchen

 Yes

Ref

 No

-0.64***(-0.90 to -0.39)

Type of house

 Pucca

Ref

 Semi-pucca

-0.87***(-1.18 to -0.57)

 Kutcha

-1.79***(-2.10 to -1.48)

Sanitation

 Yes

Ref

 No

-0.81***(-1.07 to -0.55)

Electricity

 Yes

Ref

 No

-0.97***(-1.34 to -0.61)

Age in years

 45-59

Ref

 60-74

-1.19***(-1.42 to -0.96)

 74 + 

-3.17***(-3.59 to -2.74)

Sex

 Male

Ref

 Female

-2.05***(-2.29 to -1.81)

Residence

 Urban

Ref

 Rural

-1.11***(-1.49 to -0.73)

Ever attend school

 Yes

Ref

 No

-4.93***(-5.17 to -4.70)

Currently working

 Yes

Ref

 No

-0.51***(-0.76 to -0.26)

Marital status

 Currently in union

Ref

 Currently Not in Union

-0.93***(-1.21 to -0.66)

Sleeping problem

 No

Ref

 Yes

-0.27***(-0.48 to -0.06)

Physical exercise

 Every day

Ref

 Sometimes

0.25 (-07 to 0.58)

 Hardly ever or never

-0.96***(-1.22 to -0.70)

Reading habit

 Daily

Ref

 Sometimes

-1.21***(-1.70 to -0.72)

 Never

-6.28***(-6.72 to -5.85)

Tobacco consumption

 No

Ref

 Yes

0.88 (0.66 to 1.10)

Eat sufficiently

 Yes

Ref

 No

-0.61***(-0.84 to -0.39)

Self-rated health

 Good

Ref

 Fair

-0.97***(-1.21 to -0.72)

 Poor

-1.98***(-2.31 to -1.64)

Constant

26.07 (25.83-26.32)

30.24 (29.86-30.63)

30.32 (29.85-30.80)

POmeans

 Absence of IAP

27.35 (27.27-27.43)

27.30 (27.22-27.38)

27.55 (27.47-27.62)

 Presence of IAP

25.10 (24.95-25.25)

25.71 (25.56-25.86)

25.35 (25.22-25.48)