Table 1.
Sample characteristics according to the presence of fatigue after myocardial infarction.
| Characteristic | Fatigue (N = 74) n (%) Median [IQR] |
No fatigue (N = 24) n (%) Median [IQR] |
P-valuea |
|---|---|---|---|
| Demographics | |||
| Age (years) | 77 [11] | 73 (7) | 0.046 |
| Female | 40 (54) | 9 (38) | 0.24 |
| High school or greater | 50 (68) | 19 (79) | 0.32 |
| Income ≥ $20,000 | 44 (59) | 18 (75) | 0.23 |
| Married | 37 (50) | 13 (54) | 0.82 |
| White | 61 (82) | 21 (88) | 0.75 |
| Medical history/laboratory measurements | |||
| B-natriuretic peptide (pg/mL) | 118 [152] | 118 [235] | 1.0 |
| β-blocker use | 64 (86) | 20 (83) | 0.74 |
| Body mass index (kg/m2) | 28 [8] | 29 [6] | 0.29 |
| Heart rate (beats/min) | 64 [13] | 63 [13] | 0.85 |
| Hemoglobin (g/dL) | 13 [2] | 13 [1] | 0.21 |
| Interleukin-6 (μg/dL) | 5 [3] | 4 [4] | 0.034 |
| Mean arterial pressure (mmHg)b | 82 [17] | 92 [16] | 0.0062 |
| Measurement scales/scores | |||
| Comorbidities score | 10 [5] | 10 [5] | 0.58 |
| Epworth sleepiness scale | 6 [7] | 6 [5] | 0.55 |
| Geriatric depression scale | 2 [3] | 1 [1] | 0.0003 |
| Social provisions scale | 35 [17] | 31[11] | 0.16 |
aP-values computed using Fisher’s exact test for binary variables and Deuchler–Wilcoxon’s exact test for continuous variables.
bComputed as [(2 × diastolic blood pressure) + systolic blood pressure]/3.