. Author manuscript; available in PMC: 2022 Feb 17.

Published in final edited form as: J Occup Environ Med. 2018 Jul;60(7):594–602. doi: 10.1097/JOM.0000000000001332

TABLE 2.

Association of Annual County-Level Average Estimates of PM_2.5 (μg/m³) and Ozone (ppb) Concentrations With Prevalent Diabetes in 372 SMART BRFSS Counties (n = 862,519), 2002–2008

	PM_2.5	Ozone
Model	PR^* (95% CI)	PR^* (95% CI)
Initial^†	1.32 (1.19, 1.47)	1.05 (0.98, 1.12)
Fully-adjusted^†	1.10 (1.03, 1.17)	1.06 (1.03, 1.09)

BRFSS, behavioral risk factor surveillance system; CI, confidence interval; CVD, cardiovascular disease; PM, particulate matter; ppb, parts per billion; PR, prevalence ratio; SMART, selected metropolitan/micropolitan area risk trends.

Per 10 unit increase in PM_2.5 (μg/m³) or ozone (ppb).

^†

Adjusted for year.

^‡

Adjusted for year, age, sex, race, ethnicity, education, annual household income, smoking status, body mass index, exercise and asthma.