Table 1 Baseline characteristics by body mass index subgroup.
From: Association of body mass index with mortality and functional outcome after acute ischemic stroke
Underweight (n = 282) | Normal weight (n = 2306) | Overweight (n = 1677) | Obese (n = 517) | P Value | |
|---|---|---|---|---|---|
BMI (kg/m2) | 17.2 ± 1.12 | 21.7 ± 1.45 | 25.7 ± 1.13 | 30.1 ± 2.57 | <0.001 |
Age (years) | 70.2 ± 12.8 | 65.4 ± 11.7 | 63.2 ± 11.4 | 63.2 ± 11.8 | <0.001 |
Male Sex (%) | 155 (55.0) | 1455 (63.1) | 1086 (64.8) | 276 (53.4) | <0.001 |
Living alone (%) | 20 (7.1) | 107 (4.6) | 75 (4.5) | 32 (6.2) | 0.124 |
Low education (%) | 184 (65.2) | 1121 (48.6) | 702 (41.9) | 219 (42.4) | <0.001 |
Annual household income (%) | 0.001 | ||||
<20,000 CNY | 176 (62.4) | 1371 (59.5) | 909 (54.2) | 268 (51.8) | |
≥20,000 CNY | 68 (24.1) | 637 (27.6) | 545 (32.5) | 177 (34.2) | |
Declined to respond/unknown | 38 (13.5) | 298 (12.9) | 223 (13.3) | 72 (13.9) | |
Hypertension (%) | 177 (62.8) | 1635 (70.9) | 1358 (81.0) | 453 (87.6) | <0.001 |
Diabetes (%) | 47 (16.7) | 500 (21.7) | 490 (29.2) | 161 (31.1) | <0.001 |
Hyperlipidaemia (%) | 89 (31.6) | 936 (40.6) | 838 (50.0) | 305 (59.0) | <0.001 |
Prior stroke/TIA (%) | 80 (28.4) | 704 (30.5) | 564 (33.6) | 193 (37.3) | 0.005 |
Coronary artery disease (%) | 64 (22.7) | 506 (21.9) | 418 (24.9) | 146 (28.2) | 0.010 |
Atrial fibrillation (%) | 42 (14.9) | 216 (9.4) | 142 (8.5) | 42 (8.1) | 0.005 |
Current smoker (%) | 76 (27.0) | 670 (29.1) | 509 (30.4) | 120 (23.2) | 0.015 |
Regular alcohol use (%) | 62 (22.0) | 606 (26.3) | 510 (30.4) | 126 (24.4) | 0.001 |
Prior dependency (%) | 61 (21.6) | 284 (12.3) | 220 (13.1) | 79 (15.3) | <0.001 |
Time from stroke onset to hospital presentation (%) | 0.456 | ||||
<6 hours | 88 (31.2) | 664 (28.8) | 521 (31.1) | 154 (29.8) | |
≥6 hours | 182 (64.5) | 1516 (65.7) | 1076 (64.2) | 344 (66.5) | |
Unknown | 12 (4.3) | 126 (5.5) | 80 (4.8) | 19 (3.7) | |
Glasgow Coma Scale score on admission (%) | 0.034 | ||||
13–15 | 223 (81.4) | 1957 (85.9) | 1462 (88.0) | 443 (87.7) | |
9–12 | 32 (11.7) | 216 (9.5) | 132 (7.9) | 35 (6.9) | |
3–8 | 19 (6.9) | 105 (4.6) | 67 (4.0) | 27 (5.3) | |
OCSP classification on admission | 0.544 | ||||
TACI | 32 (11.3) | 244 (10.6) | 176 (10.5) | 54 (10.4) | |
PACI | 136 (48.2) | 1138 (49.3) | 853 (50.9) | 250 (48.4) | |
LACI | 66 (23.4) | 518 (22.5) | 349 (20.8) | 120 (23.2) | |
POCI | 30 (10.6) | 302 (13.1) | 239 (14.3) | 69 (13.3) | |
Unknown | 18 (6.4) | 104 (4.5) | 60 (3.6) | 24 (4.6) |
