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. Author manuscript; available in PMC: 2014 May 23.
Published in final edited form as: Heart Lung. 2013 May 29;42(4):235–240. doi: 10.1016/j.hrtlng.2013.04.005

Table 1.

Sample characteristics for people with COPD and the comparison group.

COPD (n = 224)
Comparison group (n = 1386)
Mean ± SD
Mean ± SD
n (%) n (%)
Age 70.05 ± 8.66 69.21 ± 8.67
Gender (male)* 114 (50.9%) 891 (64.3%)
Race
 Others, including Hispanic, Mexican-American, Non-Hispanic Black 63 (28.1%) 551 (39.8%)
 Non-Hispanic White 161 (71.9%) 835 (60.3%)
Education
 High school or less 132 (59.2%) 841 (60.9%)
 More than high school 91 (40.8%) 541 (39.2%)
Income
 <$25,000 110 (51.6%) 499 (38.5%)
 $25,000–$55,000 68 (31.9%) 470 (36.3%)
 >$55,000 35 (16.4%) 327 (25.2%)
Currently working* 32 (14.3%) 453 (32.7%)
Marital status*
 Living with someone, married 166 (51.8%) 871 (62.8%)
 Separated, widowed, divorced 108 (48.2%) 515 (37.2%)
Number of people in household
 1 65 (29.0%) 336 (24.2%)
 2–7 159 (71.0%) 1050 (75.8%)
Self-reported health*
 Excellent, very good, and good 112 (51.9%) 980 (73.5%)
 Fair and poor 104 (48.2%) 354 (26.5%)
Pack years of smoking* 56.43 ± 44.75 39.91 ± 37.66
Shortness of breath* 168 (75.0%) 552 (40.0%)
Coughing* 82 (36.6%) 137 (9.9%)
Sputum* 75 (33.6%) 146 (10.6%)
Wheezing* 115 (51.3%) 150 (10.8%)
Number of Co-morbidities* 3.26 ± 2.10 2.15 ± 1.71
Body Mass Index, kg/m2 28.74 ± 7.24 28.24 ± 5.39
*

p < 0.05 comparison of data between COPD and comparison group.