2.

不同CRP水平组间各指标比较结果

Comparison of demographic and clinical characteristics of the patients with different preoperative CRP levels

Variables	CRP < 10 mg/L (n=31)	10 mg/L≤CRP < 40 mg/L (n=51)	CRP≥40 mg/L (n=65)	P
Age (years)	80 (75, 84)	78.0 (72, 84)	82 (76, 85.5)	0.13
Sex (Female)	27 (87.1%)	42 (82.4%)	39 (60.0%)	0.002
BMI	22.1±4.4	22.6±3.9	22.7±4.2	0.86
ASA				0.45
1-2	15 (48.4%)	28 (54.9%)	27 (41.5%)
3-4	16 (51.6%)	23 (45.1%)	38 (58.5%)
Preoperative waiting time (d)	3 (2, 4)	3 (2，4)	3 (2, 5)	0.59
WBC (109/L)	7.4 (5.1, 9.7)	7.3 (5.9，9.0)	8.4 (6.9, 10.4)	0.051
ESR (mm/H)	21 (10, 30)	27 (17, 38)	38 (23, 57)	< 0.001
Complications	5 (16.1%)	8 (15.7%)	24 (36.9%)	0.014