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Table 4 Correlations between the global KCCQ score and different parameters

From: Quality of life status determinants in hypertrophic cardiomyopathy as evaluated by the Kansas City Cardiomyopathy Questionnaire

Variable

Global KCCQ

Kendall’s tau-b correlation coefficient

Sig. (p value)

Age (y)

 − 0.18

0.011

Chronic kidney disease

 − 0.22

0.013

History of syncope

 − 0.18

0.045

NYHA functional class

 − 0.33

 < 0.001

eGFR (mL/min/1.73 m2)

0.31

 < 0.001

Serum urea (mg/dl)

 − 0.27

 < 0.001

Serum creatinine (mg/dl)

 − 0.18

0.017

R wave amplitude in aVL lead (mm)

 − 0.16

0.042

LVEF (%)

0.15

0.04

PASP (mmHg)

 − 0.20

0.016

PAT (ms)

0.21

0.007

Average E/e′ ratio

 − 0.16

0.039

Pulmonary hypertension

 − 0.23

0.011

Max provoked intraventricular gradient (mmHg)

0.20

0.039

LV ESD (mm)

 − 0.18

0.014

IVS thickness (mm)

 − 0.11

0.109

LA antero-posterior diameter (mm)

0.05

0.499

BNP (pg/ml)

 − 0.10

0.252

  1. LV ESD left ventricular end-systolic dimension, LVEF left ventricular ejection fraction, PASP pulmonary artery systolic pressure, PAT pulmonary acceleration time, E/e′ ratio peak mitral inflow-to-mitral relaxation velocity ratio, IVS interventricular septum, LA left atrium, BNP brain natriuretic peptide