Analysis of sleep characteristics and clinical outcomes of 139 adult patients with infective endocarditis after surgery

Table 6 Univariable logistic regression analysis exploring potential risk factors for disturbed sleep quality at 6 mo after surgery in Group 2 (n = 86)

Variables	B	P value	OR	95%CI
Gender (male)	0.435	0.731	1.143	0.534-2.448
Age (yr)	0.100	< 0.0011	1.105	1.058-1.155
BMI (kg/m2)	0.077	0.221	1.080	0.955-1.222
Duration of CICU stay (d)	0.329	0.0571	1.389	0.990-1.949
Preoperative WBC (× 109/L)	0.044	0.520	1.045	0.913-1.197
Postoperative WBC (× 109/L)	-0.001	0.962	0.999	0.946-1.054
Preoperative Hb (g/L)	0.010	0.288	1.010	0.992-1.029
Postoperative Hb (g/L)	0.006	0.699	1.006	0.977-1.035
Preoperative Alb (g/L)	0.035	0.362	1.036	0.960-1.118
Postoperative Alb (g/L)	-0.036	0.496	0.965	0.871-1.069
Preoperative CRP (mg/L)	-0.005	0.506	0.995	0.981-1.010
Postoperative CRP(mg/L)	-0.001	0.928	0.999	0.983-1.015
Postoperative PCT (ng/ml)	-0.014	0.929	0.986	0.724-1.343
Vegetation ≥ 10 mm	-0.009	0.984	0.991	0.424-2.318
Multivalve involvement	-0.511	0.456	0.600	0.157-2.298
Complication of embolism	0.294	0.549	1.342	0.513-3.508
Not using sleep medication	0.848	0.0551	2.336	0.984-5.546
PSQI during hospitalization (points)	0.527	< 0.0011	1.694	1.339-2.143
ESS during hospitalization (points)	0.025	0.673	1.025	0.914-1.149

¹Factors that were included in the subsequent multivariable analysis. Data were analyzed in univariable logistic regression. BMI: Body mass index; CICU: Cardiac intensive care unit; WBC: White blood cell; Hb: Hemoglobin; Alb: Albumin; CRP: C-reactive protein; PCT: Procalcitonin; PSQI: Pittsburgh Sleep Quality Index; ESS: Epworth Sleepiness Scale; OR: Odds ratio; CI: Confidence interval.