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Table 2 The relationship between PIF(D) or PIF(T) and other parameters

From: The relationship between peak inspiratory flow and hand grip strength measurement in men with mild chronic obstructive pulmonary disease

 

PIF (D)

PIF (T)

r

p

r

p

Age

− 0.327

0.030

0.328

0.030

BMI

0.030

0.848

0.088

0.569

FVC (L)

0.290

0.056

0.351

0.019

%FVC (% of predicted)

0.242

0.114

0.293

0.054

FEV1 (L)

0.282

0.064

0.191

0.215

%FEV1 (% of predicted)

0.101

0.513

0.076

0.625

FEV1/FVC (%)

0.125

0.419

− 0.029

0.851

PIFRs (L/min)

0.301

0.047

0.070

0.640

DLCO/VA (%)†

0.156

0.329

0.047

0.769

Distance of 6MWT (m)#

0.253

0.111

0.392

0.011

Hand grip strength (Kgf)

0.326

0.031

0.328

0.030

FENO(ppb)

0.004

0.978

0.484

0.484

R5 (cmH2O/L/s)

− 0.044

0.775

0.148

0.338

R20 (cmH2O/L/s)

− 0.046

0.764

0.135

0.384

X5 (cmH2O/L/s)

0.074

0.631

− 0.106

0.435

Fres (Hz)

− 0.053

0.733

0.126

0.417

ALX (cmH2O/L/s*Hz)

− 0.017

0.911

0.142

0.357

PImax (cmH2O)*

0.189

0.278

0.298

0.082

  1. Factors in bold indicate p <0.05; Slash showed statistical data
  2. r: Spearman rank correlation coefficient among parameters
  3. N = 44 except *PImax (n = 35), #6MWT (n = 41) or †%DLCO/VA (n = 41)
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BMC Pulmonary Medicine

ISSN: 1471-2466

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