. Author manuscript; available in PMC: 2019 May 1.

Published in final edited form as: Am J Prev Med. 2018 Mar 15;54(5):679–687. doi: 10.1016/j.amepre.2018.01.037

Table 2.

Numbers and Weighted Percentages Reporting Air Quality Awareness by Demographic Characteristics and Survey Year

Respondent characteristics	Aware of air quality alerts		Discussed with a health professional^a		Avoided busy roads to reduce air pollution exposure

					Always/usually		Sometimes/rarely		Never

	n^b	Weighted % (95% CI)^c	n^b	Weighted % (95% CI)^c	n^b	Weighted % (95% CI)^c	n^b	Weighted % (95% CI)^c	n^b	Weighted % (95% CI)^c
Total	6,844	49.2 (48.1, 50.2)	364	3.0 (2.6, 3.3)	3,587	27.3 (26.4, 28.3)	3,686	30.0 (29.1, 31.0)	5,326	42.6 (41.6, 43.6)

Age, years

18–24	289	34.8 (31.3, 38.4)	20	2.6 (1.4, 3.8)	162	20.6 (17.5, 23.6)	260	30.9 (27.5, 34.3)	409	48.6 (44.9, 52.3)

25–34	597	37.8 (35.1, 40.5)	24	1.8 (1.0, 2.6)	334	21.7 (19.3, 24.0)	545	36.2 (33.5, 38.9)	651	42.1 (39.3, 44.9)

35–44	970	44.9 (42.3, 47.4)	57	2.5 (1.7, 3.3)	514	25.7 (23.4, 28.0)	685	34.8 (32.3, 37.3)	850	39.4 (36.9, 41.9)

45–54	1,585	51.7 (49.5, 53.9)	69	2.5 (1.8, 3.2)	834	29.5 (27.5, 31.5)	860	29.7 (27.7, 31.7)	1,123	40.8 (38.6, 42.9)

55–64	1,653	59.4 (57.2, 61.7)	91	3.8 (2.9, 4.6)	860	31.7 (29.7, 33.7)	712	27.3 (25.3, 29.3)	1,052	41.0 (38.8, 43.1)

65–74	1,245	62.4 (59.9, 64.9)	72	4.4 (3.3, 5.6)	638	34.0 (31.6, 36.4)	458	22.8 (20.7, 24.9)	822	43.2 (40.7, 45.7)

75–94	505	59.6 (55.8, 63.4)	31	4.5 (2.6, 6.3)	245	29.2 (25.7, 32.6)	166	20.8 (17.7, 24.0)	419	50.0 (46.2, 53.8)

Educational attainment

Less than high school	319	36.5 (32.9, 40.1)	45	5.0 (3.4, 6.6)	209	24.2 (21.0, 27.4)	227	27.9 (24.5, 31.3)	433	47.9 (44.1, 51.6)

High school	1,706	42.3 (40.5, 44.1)	78	2.1 (1.6, 2.6)	905	23.4 (21.9, 24.9)	945	26.1 (24.4, 27.8)	1,880	50.5 (48.6, 52.4)

Some college	2,071	49.4 (47.5, 51.3)	127	3.2 (2.6, 3.9)	1,161	29.8 (28.1, 31.5)	1,122	30.1 (28.3, 31.8)	1,568	40.1 (38.3, 42.0)

Bachelor’s degree or higher	2,748	61.2 (59.4, 63.0)	114	2.7 (2.1, 3.3)	1,312	30.2 (28.6, 31.8)	1,392	34.9 (33.2, 36.7)	1,445	34.9 (33.2, 36.6)

Race/ethnicity

White, non-Hispanic	5,492	54.9 (53.7, 56.1)	204	2.1 (1.8, 2.5)	2,597	26.1 (25.1, 27.1)	2,680	28.5 (27.5, 29.6)	4,119	45.3 (44.2, 46.5)

Black, non-Hispanic	497	36.3 (33.2, 39.3)	78	6.1 (4.5, 7.6)	360	28.4 (25.5, 31.3)	358	29.7 (26.7, 32.8)	514	41.9 (38.7, 45.1)

2+ races, non-Hispanic	136	46.0 (38.8, 53.1)	13	4.5 (1.7, 7.3)	74	25.0 (18.9, 31.2)	72	30.0 (23.3, 36.8)	108	44.9 (37.7, 52.2)

Other, non-Hispanic	159	39.4 (34.1, 44.8)	17	4.0 (1.9, 6.1)	132	32.9 (27.8, 38.1)	145	37.6 (32.2, 42.9)	109	29.5 (24.5, 34.6)

Hispanic	560	38.6 (35.6, 41.6)	52	3.6 (2.5, 4.8)	424	29.5 (26.7, 32.3)	431	33.6 (30.7, 36.6)	476	36.8 (33.8, 39.8)

Sex

Female	3,372	46.0 (44.6, 47.4)	214	3.4 (2.9, 4.0)	2,006	29.0 (27.7, 30.3)	1,867	29.0 (27.6, 30.3)	2,733	42.0 (40.6, 43.4)

Male	3,472	52.6 (51.1, 54.1)	150	2.5 (2.0, 2.9)	1,581	25.5 (24.2, 26.8)	1,819	31.2 (29.8, 32.6)	2,593	43.3 (41.8, 44.8)

Smoking status

Current smoker	837	43.5 (40.7, 46.2)	58	3.9 (2.7, 5.0)	405	22.9 (20.5, 25.2)	496	30.5 (27.8, 33.1)	844	46.7 (43.9, 49.5)

Former smoker	2,218	52.3 (50.5, 54.2)	122	3.3 (2.6, 4.0)	1,135	28.0 (26.4, 29.6)	1,029	26.5 (24.8, 28.1)	1,724	45.5 (43.7, 47.3)

Lifetime non-smoker	3,789	49.1 (47.7, 50.5)	184	2.6 (2.1, 3.0)	2,047	28.1 (26.9, 29.4)	2,161	31.7 (30.4, 33.0)	2,758	40.2 (38.8, 41.6)

Survey year

2014	2,307	47.9 (46.1, 49.7)	164	3.7 (3.1, 4.4)	1,082	25.1 (23.5, 26.6)	1,148	27.1 (25.4, 28.7)	2,039	47.9 (46.1, 49.7)

2015	2,220	49.2 (47.4, 51.0)	93	2.5 (1.9, 3.1)	1,189	27.9 (26.3, 29.5)	1,249	31.1 (29.4, 32.7)	1,689	41.0 (39.3, 42.8)

2016	2,317	50.4 (48.6, 52.3)	107	2.6 (2.0, 3.2)	1,316	29.1 (27.4, 30.7)	1,289	32.1 (30.4, 33.8)	1,598	38.8 (37.1, 40.6)

Strategies to reduce air pollution exposure.

Unweighted number of respondents.

Unadjusted.