. 2008 Oct 3;168(10):1161–1168. doi: 10.1093/aje/kwn232

Table 5.

Hazard Ratios and 95% CIs for the Association Between Fatal CHD^a and a 10-μg/m³ Change in Average Predicted PM₁₀ in the 12 Months Prior to Death Stratified by Body Mass Index^b and Smoking Status^c for the US Nurses’ Health Study During the Follow-up Period 1992–2002

	Never Smoker		Former Smoker		Current Smoker
All
No. of cases^a	160		190		125
No. of person-months	251,153		244,466		77,153
	Hazard Ratio	95% CI	Hazard Ratio	95% CI	Hazard Ratio	95% CI
Basic model^d	1.87	1.24, 2.81	1.32	0.89, 1.96	0.90	0.54, 1.51
Adjusted model^e	1.83	1.20, 2.79	1.22	0.82, 1.83	0.88	0.52, 1.48
Body mass index <30
No. of cases^a	97		120		100
No. of person-months	181,451		180,120		64,912
	Hazard Ratio	95% CI	Hazard Ratio	95% CI	Hazard Ratio	95% CI
Basic model^d	1.42	0.83, 2.41	1.01	0.60, 1.68	0.88	0.50, 1.58
Adjusted model^e	1.41	0.82, 2.42	0.98	0.58, 1.64	0.85	0.47, 1.53
Body mass index ≥30
No. of cases^a	59		67		23
No. of person-months	59,425		59,897		11,614
	Hazard Ratio	95% CI	Hazard Ratio	95% CI	Hazard Ratio	95% CI
Basic model^d	2.85	1.44, 5.65	1.89	0.99, 3.58	0.98	0.31, 3.14
Adjusted model^e	2.82	1.40, 5.71	1.64	0.86, 3.13	1.03	0.31, 3.42

Abbreviations: CHD, coronary heart disease; CI, confidence interval; PM₁₀, particulate matter <10 μm in diameter.

Including sudden deaths.

Weight (kg)/height (m)².

Risks are based on complete information for participants.

Modeled stratifying by age in months, adjusting for state of residence, year, and season.

Modeled stratifying by age in months, adjusting for state of residence, year, season, smoking status, family history of MI, high cholesterol level, diabetes, hypertension, median family income in census tract of residence, physical activity, and median house value in census tract of residence.