Table 3 Comparison of clinical and biochemical data between patients with limited exercise vs. preserved exercise capacity (6-min walk distance)
From: Quality of life questionnaire predicts poor exercise capacity only in HFpEF and not in HFrEF
Variable | 6MWT > 300 m | 6MWT <300 m | P value |
|---|---|---|---|
(n = 76) | (n = 42) | ||
Age (years) | 60 ± 9.5 | 66 ± 9 | 0.003 |
Smoking (%) | 28 | 33 | 0.516 |
Diabetes (%) | 20 | 41 | 0.015 |
Arterial hypertension (%) | 66 | 69 | 0.839 |
LBBB (%) | 10 | 21 | 0.169 |
Waist/hips ratio | 0.95 ± 0.1 | 0.98 ± 0.1 | 0.036 |
BMI (kg/m2) | 29 ± 4.1 | 28 ± 3.8 | 0.730 |
BSA (m2) | 1.2 ± 0.2 | 1.1 ± 0.2 | 0.046 |
NYHA class | 0.002a | ||
NYHA class I, II, III (%) | 38, 47, 15 | 14, 45, 41 | |
HFpEF (%) | 46 | 57 | 0.249 |
Fasting glucose (mmol/L) | 6.4 ± 2.5 | 7.8 ± 2.9 | 0.013 |
Creatinine (μmol/L) | 97.6 ± 54 | 93.0 ± 21 | 0.604 |
Hemoglobin (g/dL) | 12.7 ± 1.6 | 12.3 ± 2.0 | 0.203 |
HR (beats/min) | 72 ± 15 | 80 ± 13 | 0.006 |
NT-ProBNP (pg/mL | 1510 ± 4146 | 1832 ± 2907 | 0.66 |
MLHFQ total | 43.8 ± 16.9 | 56.9 ± 14.4 | <0.001 |
MLHFQ physical | 22.1 ± 9 | 27.6 ± 6.9 | 0.001 |
MLHFQ emotional | 8.0 ± 4.3 | 10.9 ± 4.3 | 0.001 |