Table 1 Basic information of 1806 COVID-19 patients n(%)
Variables | Total(n = 1806) | Long Covid | χ2/Z | P | |
|---|---|---|---|---|---|
Yes(n = 403) | No(n = 1403) | ||||
Patients Sources | Â | Â | Â | 46.116 | <0.001* |
 Changchun Infectious Disease Hospital | 276 | 42(10.42) | 234(16.68) |  |  |
 Changchun Tongyuan Shelter Hospital | 860 | 154(38.21) | 706(50.32) |  |  |
 Affiliated Hospital to Changchun University of Chinese Medicine | 670 | 207(51.37) | 463(33.00) |  |  |
Sex | Â | Â | Â | 5.152 | 0.023* |
 Women | 829 | 205(50.87) | 624(44.48) |  |  |
 Men | 977 | 198(49.13) | 779(55.52) |  |  |
Age | 38.5[30.0,49.4] | 39.0[30.0,49.0] | 38.3[30.0,49.7] | -0.018 | 0.986 |
Smoking | Â | Â | Â | 19.251 | <0.001* |
 Smoking | 632 | 104(25.81) | 528(37.63) |  |  |
 No smoking | 1174 | 299(74.19) | 875(62.37) |  |  |
Past history | Â | Â | Â | 0.141 | 0.707 |
 Yes | 366 | 79(19.60) | 287(20.46) |  |  |
 No | 1440 | 324(80.40) | 1116(79.54) |  |  |
Allergy history | Â | Â | Â | 4.504 | 0.034* |
 Yes | 135 | 40(9.93) | 95(6.77) |  |  |
 No | 1671 | 363(90.07) | 1308(93.23) |  |  |
Readmission status | Â | Â | Â | 4.146 | 0.042* |
 Readmission | 29 | 11(2.73) | 18(1.28) |  |  |
 No readmission | 1777 | 392(97.27) | 1385(98.72) |  |  |
Length of hospitalization | Â | Â | Â | 1.491 | 0.222 |
 ≤ 14 days | 1259 | 315(78.17) | 1060(75.55) |  |  |
 > 14 days | 414 | 63(15.63) | 256(18.25) |  |  |
COVID-19 vaccine inoculation times | Â | Â | Â | 12.113 | 0.001* |
 ≤ 2 doses | 1319 | 267(66.25) | 1052(74.98) |  |  |
 > 2 doses | 487 | 136(33.75) | 351(25.02) |  |  |
First symptoms | Â | Â | Â | 9.108 | 0.003* |
 Yes | 713 | 133(33.00) | 580(41.34) |  |  |
 No | 1093 | 270(67.00) | 823(58.66) |  |  |
Total questionnaire score | 0[0,0] | 0[0,2] | 0[0,0] | -14.984 | <0.001* |