Table I.
Subject Characteristics
| COPD | Heart Failure | Cardiac Dysrhythmias | Total | ANOVA* | |||||
|---|---|---|---|---|---|---|---|---|---|
| n = 63 | n = 60 | n = 60 | n = 183 | p | |||||
| Age | 67.0. | (9.3) | 60.5 | (10.8) | 55.4 | (11.6) | 61.1 | (11.6) | <.001†, ‡, § |
| Gender (Male) | 58 | (91%) | 57 | (95%) | 44 | (72%) | 159 | (86%) | <.001‡, § |
| Ethnicity (Caucasian) | 53 | (83%) | 48 | (80%) | 58 | (95%) | 159 | (86%) | .04†, ‡, § |
| Education (At least some college) | 31 | (48%) | 41 | (73%) | 44 | (72%) | 119 | (64%) | .006†, ‡ |
| Body Mass Index (BMI) | 29.7 | (7.0) | 30.5 | (7.0) | 29.0 | (6.0) | 29.7 | (6.7) | .46 |
| Charlson Comorbidity Index | 1.6 | (1.2) | 2.3 | (1.3) | 1.0 | (0.9) | 1.6 | (1.2) | <.001†, ‡, § |
| Ejection Fraction | 55% | (8) [n=25] | 27% | (7) | 49% | (11) | 41% | (15) | <.001†, § |
| Spirometry | |||||||||
| FEV1 % Predicted | 36 | (15) | 72 | (20) | 85 | (15) | 64 | (27) | <.001†, ‡, § |
| FVC % Predicted | 57 | (16) | 73 | (17) | 85 | (14) | 72 | (20) | <.001†, ‡, § |
| FEV1/FVC | 0.46 | (0.16) | 0.73 | (0.11) | 0.73 | (0.08) | 0.64 | (0.17) | <.001†, ‡ |
| Health Related Quality of Life (HRQL) | |||||||||
| SF-36 Physical Component Score | 30.7 | (7.7) | 42.7 | (11.8) | 51.2 | (9.0) | 41.4 | (12.8) | <.001†, ‡, § |
| SF-36 Mental Component Score | 45.3 | (13.0) | 43.4 | (8.6) | 40.7 | (6.3) | 43.1 | (9.9) | .035 |
| Exercise Performance | |||||||||
| Six Minute Walk (meters) | 340.2 | (113.1) | 385.2 | (104.4) [n=24] | --- | --- | 353.6 | (112) | .094 |
| VO2 Max (mL/min/kg) | --- | --- | 20.3 | (5.3) [n=36] | 24.4 | (6.1) | 22.8 | (6.1) | .001 |
Values shown are mean(sd) or count(%)
Abbreviations: EF: Ejection Fraction; FEV1 = Forced Expiratory Volume in 1 second; FVC = Forced V Capacity; VO2Max: Maximum oxygen consumption
*
Overall group comparison; Pairwise comparisons with Bonferroni corrections: p<.05,
†
COPD vs. Heart Failure,
‡
COPD vs. Cardiac Dysrhythmias, and
§
Heart Failure vs. Cardiac Dysrhythmias