Table 3 Baseline features of the dataset
Variables | Value | Length of stay (LOS) | P-value | ||
|---|---|---|---|---|---|
1–7 days (n = 4133) | 8–14 days (n = 11624) | More than 14 days (n = 2402) | |||
BMI | – | 22.76 | 23.57 | 24.39 | .000*** |
Age | – | 56 | 60 | 62 | .000*** |
Sex | Male | 2127 | 6112 | 1566 | .000*** |
Female | 2006 | 5512 | 836 | ||
Marriage status | Married | 4015 | 11316 | 2345 | .004** |
Unmarried | 89 | 184 | 25 | ||
Divorced or widowed | 29 | 124 | 32 | ||
Occupation | Civil servant | 54 | 90 | 31 | .000*** |
Personnel of enterprises and institutions | 236 | 471 | 84 | ||
Worker | 139 | 360 | 77 | ||
Farmer | 2957 | 7592 | 1617 | ||
Retiree | 448 | 2141 | 419 | ||
Student | 37 | 74 | 4 | ||
Individual household | 33 | 115 | 17 | ||
Others | 229 | 781 | 153 | ||
Hospital payment method | Basic medical insurance for urban employees | 849 | 3073 | 609 | .000*** |
Health insurance for urban and rural residents | 2965 | 7757 | 1628 | ||
Commercial medical insurance | 292 | 732 | 151 | ||
Others | 27 | 62 | 14 | ||
Basic medical insurance for urban employees | 849 | 3073 | 609 | ||
Health insurance for urbanand rural residents | 2965 | 7757 | 1628 | ||
Commercial medical insurance | 292 | 732 | 151 | ||
Smoking history | No | 2837 | 8066 | 1457 | .000*** |
Yes | 1296 | 3558 | 945 | ||
Transient ischemic attack (TIA) | No | 1661 | 6675 | 2204 | .000*** |
Yes | 2472 | 4949 | 198 | ||
Hypertension | No | 2192 | 4319 | 702 | .000*** |
Yes | 1941 | 7305 | 1700 | ||
Hyperlipidemia | No | 3419 | 9562 | 2053 | .001** |
Yes | 714 | 2062 | 349 | ||
Diabetes | No | 3662 | 9386 | 1658 | .000*** |
Yes | 471 | 2238 | 744 | ||
Coronary heart disease | No | 3605 | 9557 | 1785 | .000*** |
Yes | 528 | 2067 | 617 | ||
Peripheral arterial disease | No | 3097 | 7570 | 1353 | .000*** |
Yes | 1036 | 4054 | 1049 | ||
Atrial fibrillation | No | 4107 | 11468 | 2315 | .000*** |
Yes | 26 | 156 | 87 | ||
Hyper homocysteinemia | No | 3708 | 10171 | 2136 | .000*** |
Yes | 425 | 1453 | 266 | ||
Epilepsy | No | 4028 | 11480 | 2337 | .000*** |
Yes | 105 | 144 | 65 | ||
Admission MRS | – | 1 | 1 | 2 | .000*** |
Admission NIHSS | – | 9.20 | 12.21 | 15.23 | .000*** |
Coma index | – | 15 | 15 | 15 | > 0.05 |
Cognitive impairment | No | 4078 | 11567 | 2392 | .000*** |
Yes | 55 | 57 | 10 | ||
Hemiplegia aphasia | No | 4128 | 11616 | 2302 | .000*** |
Yes | 5 | 8 | 100 | ||
Trauma | No | 4109 | 11592 | 2376 | .000*** |
Yes | 24 | 32 | 26 | ||
Respiratory infection | No | 3899 | 10817 | 2061 | .000*** |
Yes | 234 | 807 | 341 | ||
Dizziness | No | 3678 | 11172 | 2374 | .000*** |
Yes | 455 | 452 | 28 | ||
Whether it critical or not | No | 4108 | 11595 | 2336 | .000*** |
Yes | 25 | 29 | 66 | ||
Admission path | Outpatient | 3760 | 10387 | 2022 | .000*** |
Hospital transfer | 370 | 1230 | 377 | ||
Operation or not | No | 4122 | 11567 | 2215 | .000*** |
Yes | 11 | 57 | 187 | ||
Postoperative sequelae | No | 3712 | 9981 | 1979 | .000*** |
Yes | 421 | 1643 | 423 | ||