. 2013 Jul 5;23(4):280–287. doi: 10.2188/jea.JE20120175

Table 4. Odds ratios for respiratory morbidity associated with housing and personal characteristics.

Characteristics (reference)	Persistent cough	Persistent phlegm	Asthma symptoms	Current asthma	Wheezing	Allergy rhinitis
Sex (male)	1.00	1.09	0.69^b	0.69^b	0.82^b	0.67^b
Breast feeding (not breastfed)	0.83^b	0.65^b	0.70^b	0.81	0.82^b	0.89
Parental education (≥high school graduate)	0.95	1.26	1.19	0.94	0.77^b	1.04
Family allergic history (no history)	2.27^b	2.01^b	2.85^b	3.57^b	2.74^b	2.78^b
Family history of asthma (no history)	1.41^a	1.39	2.71^b	3.01^b	1.91^b	1.32
House near main road (distance ≥20 m)	1.14^a	1.05	1.08	1.08	1.09	1.24
House near factory or chimney (distance ≥100 m)	1.26^b	1.36^b	1.31^b	1.08	1.33^b	0.93
Home coal use (no coal use)	1.44^b	1.48^a	0.97	0.73	1.25	1.37
Ventilation device (no use)	0.99	0.97	1.10	1.11	0.89	1.20
House pets (no pet)	0.85	1.08	0.97	0.81	0.89	0.90
Home renovation in past 2 years (no renovation)	1.19^b	1.30^b	1.22^b	1.26^a	1.27^b	1.61^b
Early ETS exposure (no exposure)	1.35^b	1.54^b	1.57^b	1.07	1.36^b	0.93
Current ETS exposure (no exposure)	1.44^b	1.45^b	1.11	0.90	1.19^a	0.86

ETS, environmental tobacco smoke.

^aP < 0.15, ^bP < 0.05.

Items with superscripts are included in the final adjusted model for this variable and are adjusted for each other; remaining variables are adjusted only for footnoted items, as well as for districts.