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Table 1 Baseline characteristics of subjects

From: The health impact of remarriage behavior on chronic obstructive pulmonary disease: findings from the US longitudinal survey

 

Remarried

(n = 224)

Not-remarried

(n = 2452)

Two-sided

p value

Age at study entry

   

mean age (± SD)

61.8 (± 9.7)

69.9 (± 11.6)

< 0.001

Sex

   

   male

126 (56.3%)

744 (30.3%)

< 0.001

   female

98 (43.8%)

1708 (69.7%)

 

Race/ethnicity

   

   white/Caucasian

189 (84.4%)

2023 (82.5%)

0.482

   others

35 (15.6%)

429 (17.5%)

 

Education

   

   none/basic/secondary

70 (31.3%)

878 (35.8%)

0.176

   high school or higher

154 (68.8%)

1574 (64.2%)

 

Number of cigarettes smoked at study entry

   

   none

186 (83.0%)

2142 (87.4%)

0.176

   1-20 cigarettes/day

31 (13.8%)

258 (10.5%)

 

   > 20 cigarettes/day

7 (3.1%)

52 (2.1%)

 

COPD onset during follow-up

   
 

12 (5.4%)

171 (7.0%)

0.359

  1. Data are number unless otherwise indicated.