| Overall | KCCQ Q1 | KCCQ Q2 | KCCQ Q3 | KCCQ Q4 |
---|---|---|---|---|---|
N | 3836 | 552 | 558 | 556 | 559 |
KCCQ score median (IQR) | 34.6 (21.4, 50.5)* | 14.3 (9.6, 18.2) | 28.1 (25.3, 31.5) | 41.1 (37.5, 45.6) | 63.8 (56.3, 74.5) |
Age in yearsa | |||||
 19-20 | 150 (4) | 12 (2) | 13 (2) | 16 (3) | 20 (4) |
 30-39 | 242 (6) | 34 (6) | 36 (7) | 36 (7) | 28 (5) |
 40-49 | 513 (13) | 90 (16) | 70 (13) | 65 (12) | 68 (12) |
 50-59 | 972 (25) | 141 (26) | 131 (24) | 145 (26) | 126 (23) |
 60-69 | 1330 (35) | 189 (34) | 207 (37) | 177 (32) | 212 (38) |
 70-79 | 597 (16) | 80 (15) | 97 (17) | 111 (20) | 101 (18) |
 ≥80 | 32 (0.8) | 6 (1) | 4 (0.7) | 6 (1) | 4 (0.7) |
Femaleb | 807 (21) | 148 (27) | 133 (24) | 97 (17) | 82 (15) |
INTERMACS profileb,§ | |||||
 1 (Critical cardiogenic shock) | 500 (13) | 66 (12) | 27 (5) | 23 (4) | 26 (5) |
 2 (Progressive decline) | 1361 (36) | 237 (43) | 197 (34) | 188 (34) | 195 (35) |
 3 (Stable but inotrope dependent) | 1193 (31) | 162 (29) | 201 (36) | 202 (36) | 213 (38) |
 4 (Resting symptoms) | 608 (16) | 73 (12) | 117 (21) | 110 (20) | 101 (18) |
 5 (Exertion intolerant) | 112 (3) | 7 (1) | 14 (3) | 25 (5) | 13 (2) |
 6 (Exertion limited) | 33 (0.9) | 2 (0.4) | 3 (0.5) | 5 (0.9) | 5 (0.9) |
 7 (Advanced NYHA III) | 29 (0.8) | 5 (0.9) | 5 (0.9) | 3 (0.5) | 6 (1) |
Device strategya | |||||
 Bridge to transplant | 788 (21) | 97 (18) | 112 (20) | 102 (18) | 141 (25) |
 Possible bridge to transplant | 1326 (35) | 169 (31) | 178 (32) | 183 (33) | 167 (30) |
 Destination therapy | 1,694 (44) | 282 (51) | 266 (48) | 269 (48) | 248 (4) |
 Other | 28 (0.7) | 4 (0.7) | 2 (0.4) | 2 (0.4) | 3 (0.6) |
Dialysis within 48Â h of implantc | 40 (1) | 9 (2) | 1 (0.2) | 1 (0.2) | 2 (0.4) |
Hemoglobin g/L (g/dL) b | 114 ± 21 (11.4 ± 2.1) | 112 ± 21 (11.2 ± 2.1) | 116 ± 20 (11.6 ± 2.0) | 118 ± 20 (11.8 ± 2.0) | 118 ± 20 (11.8 ± 2.0) |
Sodium mmol/Lb | 135 ± 5 | 134 ± 5 | 135 ± 5 | 135 ± 4 | 136 ± 4 |
Albumin g/L (g/dL) b | 34 ± 7 (3.4 ± 0.7) | 34 ± 06 (3.4 ± 0.6) | 35 ± 7 (3.5 ± 0.7) | 35 ± 6 (3.5 ± 0.6) | 36 ± 6 (3.6 ± 0.6) |
IABP¶ | 918 (24) | 146 (26) | 89 (16) | 86 (16) | 71 (13) |
Severe depressiond | 98 (3) | 23 (4) | 21 (4) | 12 (2) | 7 (1) |
Working for incomeb | 572 (15) | 49 (9) | 72 (13) | 71 (13) | 109 (20) |
6MWT†feetb | 802 ± 412 | 607 ± 517 | 746 ± 374 | 843 ± 367 | 908 ± 366 |
Gait speed m/se | 0.9 ± 0.8 | 0.6 ± 0.4 | 0.9 ± 1.1 | 0.9 ± 0.4 | 1.0 ± 1.0 |
VO2 max mL/kg/mina | 11.1 ± 3.7 | 10.6 ± 5.2 | 10.6 ± 2.4 | 11.4 ± 4.4 | 11.1 ± 2.7 |