Air pollution and mortality in a large, representative U.S. cohort: multiple-pollutant analyses, and spatial and temporal decompositions

Table 1 Baseline unweighted characteristics of the NHIS cohort

Variable	NHIS Cohort
Total number in cohort	635,539
Total Deaths	106,385
Cardiopulmonary^a	43,195
Sex
% Male	44.54
% Female	55.46
Age yrs. (mean)	45.3
Race/Ethnicity
% Non-Hispanic White	67.51
% Hispanic	14.08
% Non-Hispanic Black	14.01
% All other/unknown	4.40
Income (inflation adjusted to 2015)
% $ 0–35,000	38.04
% $ 35–50,000	15.47
% $ 50–75,000	18.79
% $ 75,000+	27.71
Marital Status
% Married	49.57
% Divorced	14.06
% Separated	3.59
% Never Married	24.31
% Widowed	8.47
Education
% < High School grad	18.63
% High School grad	30.37
% Some College	27.10
% College grad	15.03
% > College grad	8.87
Urban/Rural
% Urban	77.64
% Rural	22.36
Census Region
% Northeast	18.08
% Midwest	23.71
% South	35.74
% West	22.46
BMI
% < 20	7.28
% 20–25	36.37
% 25–30	33.80
% 30–35	14.43
% > 35	8.12
Smoking
% Never	53.76
% Current	23.90
% Former	22.34

^aCardiopulmonary mortality is based on International Statistical Classification of Diseases, Injuries, and Causes of Death, Tenth Revision (ICD-10) and includes: cardiovascular disease (I00-I09, I11, I13, I20-I51), cerebrovascular disease (I60-I69), chronic lower respiratory disease (J40-J47), and influenza and pneumonia (J09-J18)

ISSN: 1476-069X