Table 3.
Clinical characteristics of latent classes analysis
| Characteristic | Class 1 (n = 228) | Class 2 (n = 271) | p value |
|---|---|---|---|
| Sex, n (%) | 0.485 | ||
| Male | 114 (50.00) | 144 (53.14) | |
| Female | 114 (50.00) | 127 (46.86) | |
| Age, mean (SD), years | 53.90 ± 15.07 | 61.12 ± 12.52 | < 0.001 |
| BMI, mean (SD), kg/m2 | 22.76 ± 3.00 | 22.61 ± 3.29 | 0.595 |
| Clinical type, n (%) | < 0.001 | ||
| Moderate | 193 (84.65) | 166 (61.25) | |
| Severe | 35 (15.35) | 105 (38.75) | |
| Initial nucleic acid test, n (%) | 0.789 | ||
| Negative | 13 (5.70) | 17 (6.27) | |
| Positive | 215 (94.30) | 254 (93.73) | |
| Outcomes, n (%) | < 0.001 | ||
| Recovery | 212 (92.98) | 210 (77.49) | |
| Therapy | 16 (7.02) | 53 (19.56) | |
| Death | 0 | 8 (2.95) | |
| Fever, n (%) | < 0.001 | ||
| No | 46 (20.18) | 26 (9.59) | |
| Yes | 182 (79.82) | 245 (90.41) | |
| Cough, n (%) | 0.249 | ||
| No | 57 (25.00) | 56 (20.66) | |
| Yes | 171 (75.00) | 215 (79.34) | |
| Myalgia or arthralgia, n (%) | 0.172 | ||
| No | 140 (61.40) | 150 (55.35) | |
| Yes | 88 (38.60) | 121 (44.65) | |
| Headache, n (%) | 0.973 | ||
| No | 222 (97.37) | 264 (97.42) | |
| Yes | 6 (2.63) | 7 (2.58) | |
| Nausea or vomiting, n (%) | 0.831 | ||
| No | 225 (98.68) | 268 (98.89) | |
| Yes | 3 (1.32) | 3 (1.11) | |
| Diarrhea, n (%) | 0.849 | ||
| No | 213 (93.42) | 252 (92.99) | |
| Yes | 15 (6.58) | 19 (7.01) | |
| Abdominal pain, n (%) | 0.039 | ||
| No | 228 (100.00) | 266 (98.15) | |
| Yes | 0 (0.00) | 5 (1.85) | |
| Smoking history, n (%) | 0.140 | ||
| No | 217 (95.18) | 249 (91.88) | |
| Yes | 11 (4.82) | 22 (8.12) | |
| Cardiovascular disease, n (%) | 0.884 | ||
| No | 207 (90.79) | 245 (90.41) | |
| Yes | 21 (9.21) | 26 (9.59) | |
| Diabetes, n (%) | 0.079 | ||
| No | 209 (91.67) | 235 (86.72) | |
| Yes | 19 (8.33) | 36 (13.28) | |
| Hypertension, n (%) | 0.006 | ||
| No | 173 (75.88) | 175 (64.58) | |
| Yes | 55 (24.12) | 96 (35.42) | |
| COPD, n (%) | 0.902 | ||
| No | 227 (99.56) | 270 (99.63) | |
| Yes | 1 (0.44) | 1 (0.37) | |
| Chronic liver disease, n (%) | 0.987 | ||
| No | 223 (97.81) | 265 (97.79) | |
| Yes | 5 (2.19) | 6 (2.21) | |
| Chronic renal disease, n (%) | 0.540 | ||
| No | 224 (98.25) | 268 (98.89) | |
| Yes | 4 (1.75) | 3 (1.11) | |
| Malignant tumor, n (%) | 0.596 | ||
| No | 223 (97.81) | 263 (97.05) | |
| Yes | 5 (2.19) | 8 (2.95) | |
| WBC count, n (%) | 0.067 | ||
| Decreased | 27 (11.84) | 19 (7.01) | |
| Normal | 191 (83.77) | 231 (85.24) | |
| Increased | 10 (4.39) | 21 (7.75) | |
| Lymphocyte count, n (%) | < 0.001 | ||
| Increased | 6 (2.63) | 2 (0.74) | |
| Normal | 165 (72.37) | 123 (45.39) | |
| Decreased | 57 (25.00) | 146 (53.87) | |
| CRP, n (%) | < 0.001 | ||
| Normal | 156 (68.42) | 87 (32.10) | |
| Increased | 72 (31.58) | 184 (67.90) |
BMI body mass index, WBC white blood cell, CRP C-reactive protein, OR odds ratio, CI confidence interval, COPD chronic obstructive pulmonary disease