TABLE 5.

ODDS RATIOS FOR SYMPTOMS AMONG THOSE WITH AND WITHOUT PREVENTIVE ACTIONS AND WITH NO REPORTED SMOKE EXPOSURE (REFERENT GROUP), 1–5, OR ⩾ 6 DAYS OF FIRE SMOKE SMELL INDOORS

	Use of Mask		Air Conditioner Use		Less Outdoors
	No	Yes	No	Yes	No	Yes
Symptom Exposure Level	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
Sneezing or runny/blocked nose, n	3,673	396	3,158	911	1,371	2,698
No fire smell (referent)	1.00	1.00	1.00	1.00	1.00	1.00
1–5 d fire smell	2.01 (1.70−2.39)	1.58 (0.86–2.91)	2.14 (1.77–2.59)	1.75 (1.26–2.43)	1.84 (1.25–2.73)	1.76 (1.46–2.11)
6 or more days fire smell	2.81 (2.27−3.47)	2.30 (1.22–4.31)	3.05 (2.42–3.85)	2.23 (1.52–3.25)	2.54 (1.60–4.01)	2.47 (1.98–3.09)
Wheezing, n	3,630	387	3,111	906	1,357	2,660
No fire smell (referent)	1.00	1.00	1.00	1.00	1.00	1.00
1–5 d fire smell	2.05 (1.51−2.79)	1.50 (0.68–3.31)	2.29 (1.64–3.18)	1.79 (1.79–3.07)	4.80 (2.51–9.20)	1.76 (1.28–2.42)
6 or more days fire smell	3.47 (2.49−4.85)	2.23 (1.52–3.25)	3.46 (2.41–4.98)	3.00 (1.71–5.27)	7.65 (3.74–15.63)	2.91 (2.06–4.09)

For definition of abbreviations, see Table 4.

Total n varies between 4,017 and 4,069 due to varying number of “don't know” answers). The interactions of fire smell and preventive actions were statistically significant (likelihood ratio test, p < 0.05) for mask and air conditioner use in case of sneezing/blocked nose, and for “less outdoors” in case of wheezing. Note that in each exposure category, those taking preventive action had higher symptom rates than those not taking action (see text).