Table 2.
Characteristics of Case and Control Time Periods
| Characteristics | Combined Case and Control Time Periods (N=891) | Case Time Periods (N = 81) | Control Time Periods (N = 810) |
|---|---|---|---|
| Age, median (interquartile range)* | 58.9 (49.9, 68.1) | 57.6 (51.7, 65.5) | 58.9 (49.9, 68.4) |
| Men (N, %) | 484 (54) | 44 (54) | 440 (54) |
| NYHA Class (N, %) | |||
| I | 77 (9) | 7 (9) | 70 (9) |
| II | 495 (56) | 45 (56) | 450 (56) |
| III | 198 (22) | 18 (22) | 180 (22) |
| IV | 121 (14) | 11 (14) | 110 (14) |
| Study Site (N, %) | |||
| UNC | 385 (43) | 35 (43) | 350 (43) |
| Northwestern University | 264 (30) | 24 (30) | 240 (30) |
| UCSF | 169 (19) | 13 (16) | 156 (19) |
| Olive View, UCLA | 73 (8) | 9 (11) | 64 (8) |
| Socioeconomic Status, median (interquartile range)* | 4 (3, 7) | 4 (3, 5) | 4 (3, 7) |
| Inadequate Literacy (N, %) | 295 (33) | 24 (30) | 271 (33) |
| Cardiovascular Disease (N, %) | 482 (54) | 45 (56) | 437 (54) |
| Chronic Kidney Disease (N, %) | 353 (40) | 39 (48) | 314 (39) |
| Diabetes Mellitus (N, %) | 396 (44) | 39 (48) | 357 (44) |
| Hypertension (N, %) | 714 (80) | 65 (80) | 649 (80) |
| Systolic Dysfunction (N, %)† | 559 (63) | 64 (79) | 495 (61) |
| ACE-Inhibitor or ARB (N, %) | 710 (80) | 68 (84) | 642 (79) |
| Beta-Blocker (N, %) | 750 (84) | 69 (85) | 681 (84) |
| Adherent to weight monitoring‡ (≥ 6 out of 7 days; N, %) | 416 (47) | 27 (33) | 389 (48) |
| Assigned to diuretic self-adjustment(≥ 6 out of 7 days; N, %) | 540 (61) | 41 (51) | 499 (62) |
| Adherent to diuretic self-adjustment‡ (≥ 6 out of 7 days; N, %) | 184 (21) | 8 (10) | 176 (22) |
*
No significant differences between groups by either t-test or Wilcoxon-Mann-Whitney test
†
p=0.002
‡
p<0.05