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. 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 3.

Unadjusted Percentages of Air Quality Awareness and Associations With Asthma, Emphysema/COPD, and Heart Disease Status

Air quality awareness Selected respiratory and heart disease status PR (95% CI)b

Yes No


na Weighted % (95% CI)b na Weighted % (95% CI)b
Aware of air quality alerts

 Asthma 497 51.9 (47.9, 55.9) 6,347 49.0 (47.9, 50.0) 1.06 (0.98, 1.15)

 Emphysema/COPD 223 60.2 (54.5, 66.0) 6,621 48.9 (47.9, 50.0) 1.23 (1.12, 1.36)

 Heart disease 302 57.9 (52.9, 62.9) 6,542 48.9 (47.8, 49.9) 1.18 (1.08, 1.29)

 Any of the above 905 55.0 (52.0, 58.0) 5,939 48.4 (47.3, 49.5) 1.14 (1.07, 1.20)

Discussed with a health professional strategies to reduce air pollution exposure

 Asthma 105 11.8 (9.3, 14.3) 259 2.3 (2.0, 2.6) 5.15 (3.98, 6.65)

 Emphysema/COPD 34 11.4 (7.6, 15.3) 330 2.8 (2.4, 3.1) 4.15 (2.89, 5.95)

 Heart disease 24 5.4 (2.8, 8.0) 340 2.9 (2.5, 3.2) 1.89 (1.15, 3.10)

 Any of the above 132 9.1 (7.4, 10.8) 232 2.2 (1.8, 2.5) 4.16 (3.25, 5.32)

Avoided busy roads to reduce air pollution exposure

 Asthma

  Always/usually 287 30.5 (26.9, 34.0) 3,300 27.1 (26.1, 28.0) 1.12 (1.00, 1.27)

  Sometimes/rarely 238 27.6 (24.0, 31.2) 3,448 30.2 (29.2, 31.2) 0.91 (0.80, 1.04)

  Never 338 41.9 (37.9, 45.9) 4,988 42.7 (41.6, 43.7) 0.98 (0.89, 1.08)

 Emphysema/COPD

  Always/usually 103 29.0 (23.8, 34.3) 3,484 27.3 (26.4, 28.2) 1.06 (0.88, 1.28)

  Sometimes/rarely 62 17.8 (13.3, 22.4) 3,624 30.3 (29.4, 31.3) 0.59 (0.45, 0.76)

  Never 194 53.2 (47.4, 59.0) 5,132 42.4 (41.3, 43.4) 1.25 (1.12, 1.40)

 Heart disease

  Always/usually 137 25.9 (21.6, 30.2) 3,450 27.4 (26.4, 28.3) 0.95 (0.80, 1.12)

  Sometimes/rarely 112 23.1 (18.8, 27.4) 3,574 30.3 (29.3, 31.3) 0.76 (0.63, 0.92)

  Never 254 51.0 (46.0, 56.0) 5,072 42.3 (41.3, 43.4) 1.21 (1.09, 1.33)

 Any of the above

  Always/usually 466 29.1 (26.4, 31.7) 3,121 27.1 (26.1, 28.1) 1.07 (0.97, 1.18)

  Sometimes/rarely 375 25.4 (22.8, 28.1) 3,311 30.6 (29.6, 31.7) 0.83 (0.74, 0.93)

  Never 685 45.5 (42.6, 48.5) 4,641 42.3 (41.2, 43.3) 1.08 (1.00, 1.16)
a

Unweighted number of respondents.

b

Unadjusted.

COPD, chronic obstructive pulmonary disease; PR, prevalence ratio.