Table 1. Baseline characteristics of the study population according to the body mass index.
| Body mass index (kg/m2), N (column %) | ||||||||
|---|---|---|---|---|---|---|---|---|
| <18.5 | 18.5–22.9 | 23.0–24.9 | 25.0–29.9 | ≥30 | p | |||
| N (row %) | 191 (4.6) | 1741 (42.0) | 1005 (24.3) | 1011 (24.4) | 193 (4.7) | |||
| Age (years) | <0.0001 | |||||||
| 20–29 | 68 (35.6) | 455 (26.1) | 172 (17.1) | 193 (19.1) | 54 (28.0) | |||
| 30–39 | 24 (12.6) | 183 (10.5) | 102 (10.1) | 117 (11.6) | 43 (22.3) | |||
| 40–49 | 13 (6.8) | 270 (15.5) | 133 (13.2) | 145 (14.3) | 34 (17.6) | |||
| 50–59 | 20 (10.5) | 347 (19.9) | 241 (24.0) | 234 (23.1) | 31 (16.1) | |||
| 60–69 | 16 (8.4) | 249 (14.3) | 204 (20.3) | 186 (18.4) | 19 (9.8) | |||
| 70–79 | 28 (14.7) | 136 (7.8) | 111 (11.0) | 95 (9.4) | 8 (4.1) | |||
| ≥ 80 | 22 (11.5) | 101 (5.8) | 42 (4.2) | 41 (4.1) | 4 (2.1) | |||
| Female | 135 (70.7) | 1182 (67.9) | 534 (53.1) | 459 (45.4) | 105 (54.4) | <0.0001 | ||
| Male | 56 (29.3) | 559 (32.1) | 471 (46.9) | 552 (54.6) | 88 (45.6) | |||
| BT (°C) | 36.97 ± 0.5 | 36.91 ± 0.5 | 36.92 ± 0.5 | 37.02 ± 0.6 | 37.05 ± 0.6 | <0.0001 | ||
| Dyspnea | 0.0135 | |||||||
| Yes | 26 (13.6) | 176 (10.1) | 118 (11.7) | 146 (14.4) | 26 (13.5) | |||
| No | 165 (86.4) | 1565 (89.9) | 886 (88.2) | 865 (85.6) | 167 (86.5) | |||
| SBP* (mmHg) | <0.0001 | |||||||
| <120 | 81 (42.4) | 529 (30.4) | 183 (18.2) | 152 (15.0) | 19 (9.8) | |||
| 120–129 | 36 (18.8) | 387 (22.2) | 219 (21.8) | 207 (20.5) | 31 (16.1) | |||
| 130–139 | 27 (14.1) | 344 (19.8) | 205 (20.4) | 209 (20.7) | 55 (28.5) | |||
| 140–159 | 30 (15.7) | 363 (20.9) | 291 (29.0) | 329 (32.5) | 65 (33.7) | |||
| ≥ 160 | 16 (8.4) | 115 (6.6) | 107 (10.6) | 113 (11.2) | 23 (11.9) | |||
| Diabetes mellitus | <0.0001 | |||||||
| Yes | 18 (9.4) | 157 (9.0) | 137 (13.6) | 160 (15.8) | 29 (15.0) | |||
| No | 173 (90.6) | 1584 (91.0) | 868 (86.4) | 851 (84.2) | 164 (85.0) | |||
| Hypertension | <0.0001 | |||||||
| Yes | 28 (14.7) | 234 (13.4) | 247 (24.6) | 301 (29.8) | 52 (26.9) | |||
| No | 163 (85.3) | 1507 (86.6) | 758 (75.4) | 710 (70.2) | 141 (73.1) | |||
| Heart failure | 0.0132 | |||||||
| Yes | 6 (3.1) | 12 (0.7) | 8 (0.8) | 13 (1.3) | 1 (0.5) | |||
| No | 185 (96.9) | 1729 (99.3) | 997 (99.2) | 998 (98.7) | 192 (99.5) | |||
| Chronic heart disease** | 0.0686 | |||||||
| Yes | 7 (3.7) | 42 (2.4) | 40 (4.0) | 41 (4.1) | 4 (2.1) | |||
| No | 183 (95.8) | 1693 (97.2) | 961 (95.6) | 965 (95.5) | 189 (97.9) | |||
| Asthma | 0.0333 | |||||||
| Yes | 3 (1.6) | 31 (1.8) | 32 (3.2) | 23 (2.3) | 9 (4.7) | |||
| No | 188 (98.4) | 1710 (98.2) | 973 (96.8) | 988 (97.7) | 184 (95.3) | |||
| Chronic obstructive lung disease | 0.0006 | |||||||
| Yes | 6 (3.1) | 14 (0.8) | 5 (0.5) | 3 (0.3) | 1 (0.5) | |||
| No | 185 (96.9) | 1727 (99.2) | 1000 (99.5) | 1008 (99.7) | 192 (99.5) | |||
| Chronic kidney disease | 0.7807 | |||||||
| Yes | 3 (1.6) | 18 (1.0) | 8 (0.8) | 12(1.2) | 3 (1.6) | |||
| No | 188 (88.4) | 1723 (99.0) | 997 (99.2) | 999 (98.8) | 190 (98.4) | |||
| Malignancy | 0.2349 | |||||||
| Yes | 7 (3.7) | 48 (2.8) | 26 (2.6) | 18 (1.8) | 8 (4.1) | |||
| No | 184 (98.4) | 1693 (97.2) | 979 (99.2) | 993 (98.2) | 185 (95.9) | |||
| Dementia¶ | <0.0001 | |||||||
| Yes | 20 (10.5) | 65 (3.7) | 20 (2.0) | 16 (1.6) | 0 | |||
| No | 162 (84.8) | 1528 (87.8) | 911 (90.6) | 924 (91.4) | 181 (93.8) | |||
| Disease severity | 0.0003 | |||||||
| Non critical | 175 (91.6) | 1686 (96.8) | 980 (97.5) | 962 (95.2) | 186 (96.4) | |||
| Critical | 16 (8.4) | 55 (3.2) | 25 (2.5) | 49 (4.8) | 7 (3.6) | |||
| Discharge | <0.0001 | |||||||
| Live | 175 (91.6) | 1695 (97.4) | 985 (98.0) | 972 (96.1) | 188 (97.4) | |||
| Death | 16 (8.4) | 46 (2.6) | 20 (2.0) | 39 (3.9) | 5 (2.6) | |||
BT, body temperature, mean ± standard deviation; SBP, systolic blood pressure; DM, diabetes mellitus; CHD, chronic heart disease; COPD, chronic obstructive pulmonary disease; CKD, chronic kidney disease.
Missing data
* n = 5
** n = 16
¶ n = 314.