Table 1 Baseline participant characteristics by ever-anemia status during study period
From: Longitudinal anemia status and risk for adverse outcomes in former smokers with COPD
|  | Never Anemic (N = 94) | Ever-Anemic (N = 65) | P-value |
|---|---|---|---|
Demographics | |||
Age | 66.9 (8.4) | 66.0 (8.1) | 0.49 |
Gender, N (% Female) | 51 (54.3%) | 31 (47.7%) | 0.42 |
Race, N (% White) | 60 (63.8%) | 30 (46.2%) | 0.03 |
Education, N (% Some college or above) | 57 (60.6%) | 31 (47.7%) | 0.11 |
Pack-Years | 50.0 (32.4) | 48.7 (31.1) | 0.80 |
BMI | 31.3 (8.2) | 32.0 (8.1) | 0.61 |
ICS or LABA or LAMA, N (% Yes) | 72 (76.6%) | 49 (75.4%) | 0.86 |
Comorbidities | |||
Cardiovascular Disease, (#) | 0.4 (0.7) | 0.7 (0.9) | 0.01 |
Chronic Kidney Disease, N (%) | 2 (2.1%) | 7 (10.8%) | 0.02 |
Agatston score†| 612.5 (1237.7) | 923.8 (1521.4) | 0.20 |
Agatston Categorical†, N (%) |  |  | 0.04 |
0 | 23 (27.7%) | 6 (11.8%) | Â |
0–99 | 24 (28.9%) | 11 (21.6%) |  |
100–399 | 11 (13.3%) | 8 (15.7%) |  |
≥ 400 | 25 (30.1%) | 26 (51.0%) |  |
Hemoglobin | 14.2 (1.1) | 12.0 (1.1) | < 0.01 |
Lung Function, Symptom Burden & Exacerbation History | |||
FEV1% Predicted | 53.8 (16.6) | 48.2 (17.0) | 0.04 |
COPD Assessment Test | 17.7 (7,5) | 19.0 (7.4) | 0.32 |
St. George’s Respiratory Questionnaire | 46 (18) | 48 (15) | 0.50 |
6-Minute Walk Distance (m) | 256 (126) | 206 (116) | 0.08 |
Moderate/Severe Exacerbations in the Past 12 months, N (% Yes) | 52 (55.9%) | 36 (55.4%) | 0.95 |
Supplemental oxygen use, N (% Yes) | 18 (19.4%) | 20 (30.8%) | 0.10 |