TABLE 3.

Linear regression analysis of the impact of cigarette smoking.

Variables	Coefficients	95% CI	p value
Onset time	−0.10	−0.32 to 0.11	0.349
Lasting time	0.00	−0.03 to 0.02	0.868
75% recovery	0.10	−0.11 to 0.32	0.354
Recover index	−0.10	−0.31 to 0.12	0.371
Antibiotic use	4.98	2.00 to 7.97	0.001*
Opiate dose	0.00	−0.03 to 0.02	0.722
Anesthetic dose	0.01	−0.03 to 0.04	0.694
Complication	4.67	−4.75 to 14.09	0.330
Cefathiamidine	7.92	0.38 to 16.40	0.040*
Cefoperazone	9.08	−4.25 to 20.90	0.193
Ceftizoxime	4.72	−6.25 to 12.98	0.491
Cefuroxime	4.76	−3.62 to 12.18	0.287
Levofloxacin	5.22	−5.92 to 11.92	0.508
Piperacillin	4.67	−3.82 to 13.36	0.275
Not use antibiotics	1.74	−7.55 to 7.43	0.988