Table 4.

The prevalence of current ES among the participants along with crude and adjusted ORs

Variable	Total*	ES (%)	Crude OR (95% CI)†	p Value	Adjusted OR (95% CI)†	p Value
Age (years)
12	111	16.22	1		1
13	1582	10.24	0.58 (0.34 to 0.99)	0.046	0.67 (0.33 to 1.38)	0.289
14	1731	8.61	0.48 (0.28 to 0.82)	0.007	0.63 (0.31 to 1.30)	0.219
Sex
Female	1790	12.0	1		1
Male	1634	7.0	0.55 (0.43 to 0.70)	0.000	0.56 (0.42 to 0.76)	0.000
Type of house
Brick	2938	9.98	1		1
Mud	45	8.89	0.89 (0.31 to 2.50)	0.829	0.62 (0.14 to 2.72)	0.529
Corrugated iron	189	8.99	0.90 (0.54 to 1.50)	0.699	0.67 (0.31 to 1.42)	0.301
Combination	126	5.56	0.53 (0.24 to 1.16)	0.115	0.44 (0.17 to 1.12)	0.088
ETS exposure at home in the past 30 days
No	1460	7.5	1		1
Yes	1452	12.4	1.73 (1.34 to 2.22)	0.000	1.93 (1.43 to 2.59)	0.000
ETS exposure at school in the past 30 days
No	1452	8.6	1		1
Yes	1177	11.6	1.40 (1.08 to 1.80)	0.010	1.44 (1.09 to 1.90)	0.009
Mother/female guardian smoke cigarettes
No	3037	9.10	1		1
Yes	343	13.12	1.48 (1.06 to 2.08)	0.020	1.48 (0.97 to 2.26)	0.067
Mode of transport to school
Walk	1728	8.2	1		1
Taxi/bus	708	12.3	1.56 (1.18 to 2.08)	0.002	1.79 (1.27 to 2.53)	0.001
Motor car	683	9.8	1.21 (0.89 to 1.65)	0.207	1.12 (0.75 to 1.66)	0.576
Combination	201	10.5	1.31 (0.80 to 2.12)	0.273	1.29 (0.72 to 2.30)	0.389
Train	100	12.0	1.55 (0.83 to 2.92)	0.166	0.94 (0.39 to 2.26)	0.892
Frequency of trucks passing near homes on weekdays
Never	563	7.3	1		1
Seldom	1033	9.5	1.33 (0.91 to 1.95)	0.135	1.46 (0.89 to 2.41)	0.132
Frequently through the day	580	9.3	1.30 (0.85 to 1.99)	0.219	1.35 (0.77 to 2.36)	0.293
Almost all day	1212	11.1	1.59 (1.10 to 2.29)	0.012	1.95 (1.19 to 3.20)	0.008

*Totals for each risk factor are different due to difference in missing values.

†Model adjusted for all the variables.

Values that are statistically significant at less than 0.02 for the crude OR and less than 0.05 for the adjusted OR are in bold font.

ES, eczema symptoms; ETS, environmental tobacco smoke.