Table 2 Baseline characteristics in the propensity score–matched sample
BMI grouping | P value | |||
|---|---|---|---|---|
BMI < 25kg/m2(n=51) | BMI ≥ 25kg/m2(n=51) | |||
General characteristics | ||||
Age, years | 44.10±13.10 | 44.16±12.21 | 0.981 | |
Gender | Male | 13 (25.5%) | 15 (29.4%) | 0.825 |
Female | 38 (74.5%) | 36 (70.6%) | ||
Marriage | Married | 47 (92.2%) | 48 (94.1%) | 0.678 |
Other | 4(7.8%) | 3 (5.9%) | ||
Education level | Illiteracy | 2 (3.9%) | 4 (7.8%) | 0.232 |
Primary | 9 (17.6%) | 6 (11.8%) | ||
Secondary | 26 (51.0%) | 21 (41.2%) | ||
Other | 14 (27.4%) | 20 (39.2%) | ||
Preoperative comorbidities | ||||
Hypertension | Yes | 10(19.6%) | 8(15.7%) | 0.796 |
No | 41(80.4%) | 43(84.3%) | ||
Diabetes | Yes | 3(5.9%) | 3(5.9%) | 0.999 |
No | 48(94.1%) | 48(94.1%) | ||
Hashimoto’s thyroiditis | Yes | 14(27.5%) | 16(31.4%) | 0.828 |
No | 37(72.5%) | 35(68.6%) | ||
Goiter | Yes | 18(35.3%) | 17(33.3%) | 0.999 |
No | 33(64.7%) | 34(66.7%) | ||
Fatty liver or intra-hepatic fat deposits | Yes | 11 (35.5%) | 27 (75.0%) | 0.001 |
No | 20 (64.5%) | 9 (25.0%) | ||
Surgery-related factors | ||||
Surgical approach | Open | 44(86.3%) | 46(90.2%) | 0.760 |
Endoscopic | 7(13.7%) | 5(9.8%) | ||
Tumor multifocality | Unifocal | 12 (23.5%) | 11 (21.6%) | 0.999 |
Multifocal | 39 (76.5%) | 40 (78.4%) | ||
Extent of Lymphadenectomy | Central | 38 (74.5%) | 39 (76.5%) | 0.999 |
Lateral | 24 (25.5%) | 17 (23.5%) | ||
Capsular invasion | Yes | 17 (33.3%) | 8 (15.7%) | 0.064 |
No | 34 (66.7%) | 43 (84.3%) | ||
Nerve invasion | Yes | 2 (2.3%) | 0 (0.0%) | 0.495 |
No | 49 (97.7%) | 51 (100.0%) | ||
Vascular invasion | Yes | 2 (3.9%) | 1 (2.0%) | 0.999 |
No | 49 (96.1%) | 50 (98.0%) | ||
Tumor maximal diameter, cm | 1.00±0.95 | 1.00±0.61 | 0.999 | |
Surgery duration, minutes | 110.00±31.64 | 107.00±36.82 | 0.921 | |
Intraoperative blood loss, ml | 25.69±12.69 | 26.08±13.43 | 0.880 | |
Length of hospital stay, days | 3.84±1.17 | 4.00±1.52 | 0.561 | |
Biochemical indicators | ||||
TC, mmol/L | 4.60±0.87 | 4.74±1.03 | 0.446 | |
TG, mmol/L | 1.40±0.83 | 1.99±1.80 | 0.036 | |
HDL-C, mmol/L | 1.30±0.34 | 1.10±0.23 | < 0.001 | |
LDL-C, mmol/L | 2.61±0.67 | 2.80±0.79 | 0.546 | |
Serum creatinine, µmol/L | 60.51±14.24 | 65.22±18.07 | 0.148 | |
Pre-calcium levels, mmol/L | 2.32±0.07 | 2.32±0.08 | 0.902 | |
Pre-PTH level, pg/ml | 42.77±11.29 | 45.46±10.25 | 0.210 | |