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Table 1 Demographic Characteristics of Subjects with COPD by Anemia Status (n = 495)

From: Association between anemia and quality of life in a population sample of individuals with chronic obstructive pulmonary disease

Characteristic

Anemia (n= 37)

No Anemia (n= 458)

Total (n= 495)

P-Value for Difference

Age (Means, SD)

65.05 (10.45)

64.07 (9.94)

64.15 (9.97)

0.57

HGB (Means, SD)

11.51 (1.05)

14.63 (1.11)

14.40 (1.38)

<0.0001

Men (n, %)

19 (51.35)

277 (60.48)

296 (54.80)

0.28

Years of Education (Mean, SD)

12.46 (2.59)

12.84 (2.43)

12.81 (2.44)

0.36

Race (n, %)

   

<0.0001

Caucasian

25 (67.57)

426 (93.01)

451 (91.11)

 

African American

12 (32.43)

32 (6.99)

44 (8.89)

 

Myocardial Infarction (n, %)

3 (8.11)

53 (11.57)

56 (11.31)

0.52

Renal Disease (n, %)

2 (5.41)

8 (1.75)

10 (2.02)

0.13

Diabetes (n, %)

14 (37.84)

68 (14.85)

82 (16.57)

0.0003

Smoking Status (n, %)

   

0.09

Never Smoked

13 (35.14)

107 (23.36)

120 (24.24)

 

Current Smoker

5 (13.51)

129 (28.17)

134 (27.07)

 

Former Smoker

19 (51.35)

222 (48.47)

241 (48.69)

 

Total Pack Years Smoked

18.65 (22.67)

28.33 (26.71)

27.60 (26.53)

0.03

FEV 1 , % Predicted

68.43 (8.23)

66.04 (12.69)

66.22 (12.42)

0.26