Skip to main content

Table 2 Association of disease activity with HRV parameters at baseline by univariate linear regression

From: Impact of heart rate variability, a marker for cardiac health, on lupus disease activity

 

Independent variables

Dependent variables

RMSSD

pNN50

HF

LF/HF

BILAG

p = 0.259

β = −0.024

p  = 0.019

β = −0.385

p  = 0.020

β = −0.108

p  = 0.024

β = 0.630

BILAG mucocutaneous

p = 0.870

β = 0.002

p = 0.124

β = −0.142

p = 0.313

β = −0.027

p = 0.695

β = 0.062

BILAG musculoskeletal

p = 0.346

β = −0.011

p  = 0.043

β = −0.185

p  = 0.010

β = −0.066

p = 0.100

β = 0.257

SLEDAI

p = 0.683

β = 0.005

p = 0.312

β = −0.101

p = 0.488

β = −0.020

p = 0.073

β = 0.301

SLEDAI rash

p = 0.977

β < 0.001

p = 0.420

β = −0.009

p = 0.170

β = −0.004

p = 0.206

β = 0.024

SLEDAI arthritis

p = 0.531

β < 0.001

p = 0.309

β = −0.010

p = 0.088

β = −0.005

p = 0.446

β = 0.013

PGA

p = 0.651

β < −0.001

p  = 0.014

β = −0.026

p = 0.154

β = −0.004

p = 0.062

β = 0.034

SFI

p = 0.456

β = −0.001

p = 0.329

β = −0.012

p  = 0.047

β = −0.007

p  = 0.008

β = 0.054

  1. Abbreviations: BILAG British Isles Lupus Assessment Group, HF high-frequency power, LF/HF ratio low frequency to high frequency ratio, PGA physician global assessment, pNN50 percentage of pairs of adjacent NN intervals differing by more than 50 milliseconds, RMSSD square root of the mean of the squares of differences between adjacent NN intervals, SFI Safety of Estrogens in Lupus Erythematosus National Assessment-SLEDAI flare index, SLEDAI Systemic Lupus Erythematosus Disease Activity Index
  2. p values <0.05 are in bold type