Table 2 Comparison of two groups of baseline data in the training set.
Characteristics | Training Cohort | ||
|---|---|---|---|
Non-postoperative shivering (n = 262)a | Postoperative shivering (n = 162)a | p-valueb | |
Gender | 0.381 | ||
Male | 139 (53%) | 93 (57%) | |
Female | 123 (47%) | 69 (43%) | |
Age | < 0.001 | ||
< 60 years | 80 (31%) | 75 (46%) | |
≥ 60 years | 182 (69%) | 87 (54%) | |
Body mass index | 0.366 | ||
< 18.5 kg/m2 | 29 (11%) | 11 (7%) | |
18.5–23.9 kg/m2 | 132 (50%) | 90 (56%) | |
24.0–28.0 kg/m2 | 79 (30%) | 51 (31%) | |
> 28.0 kg/m2 | 22 (8%) | 10 (6%) | |
Body surface area | 0.454 | ||
<1.5 m2 | 118 (45%) | 63 (39%) | |
1.5-2.0 m2 | 93 (35%) | 65 (40%) | |
>2.0 m2 | 51 (19%) | 34 (21%) | |
Diagnosed with diabetes | 0.581 | ||
No | 223 (85%) | 141 (87%) | |
Yes | 39 (15%) | 21 (13%) | |
Past surgical history | 0.119 | ||
No | 132 (50%) | 69 (43%) | |
Yes | 130 (50%) | 93 (57%) | |
ASA | 0.124 | ||
I | 9 (3%) | 3 (2%) | |
II | 184 (70%) | 102 (63%) | |
III | 69 (26%) | 57 (35%) | |
Surgical spot | 0.753 | ||
Superior lobe of left lung | 74 (28%) | 36 (22%) | |
Inferior lobe of left lung | 51 (19%) | 34 (21%) | |
Superior lobe of right lung | 77 (29%) | 52 (32%) | |
Middle lobe of right lung | 11 (4%) | 7 (4%) | |
Inferior lobe of right lung | 49 (19%) | 33 (20%) | |
Intraoperative hypothermia | < 0.001 | ||
No | 139 (53%) | 55 (34%) | |
Yes | 123 (47%) | 107 (66%) | |
Delayed recovery from anesthesia | < 0.001 | ||
No | 250 (95%) | 125 (77%) | |
Yes | 12 (5%) | 37 (23%) | |
Type of operation | < 0.001 | ||
Non-multidisciplinary treatment | 150 (57%) | 66 (41%) | |
Multi-disciplinary treatment | 112 (43%) | 96 (59%) | |
Postoperative analgesia | < 0.001 | ||
No | 82 (31%) | 128 (79%) | |
Yes | 180 (69%) | 34 (21%) | |
Anesthesia duration | 0.003 | ||
≤ 180 min | 61 (23%) | 19 (12%) | |
>180 min | 201 (77%) | 143 (88%) | |
Operation duration | < 0.001 | ||
≤ 180 min | 206 (79%) | 82 (51%) | |
>180 min | 56 (21%) | 80 (49%) | |
Preoperative temperature | 0.027 | ||
Mean ± SD | 36.49 ± 0.15 | 36.46 ± 0.16 | |
Indoor temperature | 0.361 | ||
Mean ± SD | 23.11 ± 0.68 | 23.05 ± 0.68 | |
