The association between lower prognostic nutritional index and higher short- & long-term mortality in older adults (≥ 70 years) undergoing coronary artery bypass grafting: a retrospective study

Table 4 Univariate Cox regression analysis for long-term mortality

Variables	HR	95%CI for HR Lower-Upper	P value
Age	1.117	1.067–1.168	< 0.001
Gender	0.519	0.326–0.829	0.006
Ccr	0.982	0.972–0.991	< 0.001
Number of diseased coronary artery	0.730	0.525–1.015	0.062
Serum albumin before discharge	0.944	0.903–0.987	0.012
TLC before discharge	0.662	0.470–0.934	0.019
PNI before discharge	0.939	0.905–0.974	0.001
NYHA classification	1.115	0.881–1.410	0.365
Obesity status	0.889	0.766–1.033	0.124
CHD classification	0.951	0.714–1.265	0.729
Hypertension	1.001	0.688–1.457	0.996
Diabetes	1.207	0.844–1.725	0.302
Cerebrovascular disease	1.061	0.801–1.407	0.679
PVD	1.370	0.811–2.313	0.240
Valvular diseases	1.103	0.621–1.961	0.738
COPD	1.523	0.710–3.266	0.280
Preoperative AF	1.159	0.473–2.839	0.747
Pulmonary hypertension	0.954	0.640–1.422	0.816

HR, hazard ratio; CI, confidence interval; Ccr, endogenous creatinine clearance rate; TLC, total peripheral blood lymphocyte count; PNI, prognostic nutritional index; NYHA, New York heart association; CHD, coronary heart disease; PVD, peripheral vascular disease; COPD, chronic obstructive pulmonary disease; AF, atrial fibrillation

ISSN: 1471-2318