Table 4 Wilcoxon signed-rank test and Mann Whitney U test results for PEFR, z, p- and effect size (r) values.

From: Effects of an incentive spirometer versus a threshold inspiratory muscle trainer on lung functions in Parkinson’s disease patients: a randomized trial

 

Wilcoxon signed-rank test

Mann–Whitney U test

(Between-group comparison)

IS

TIMT

PEFR_Pre–PEFR_Post

PEFR_Pre–PEFR_Post

PEFR_Pre

PEFR_Post

z

− 0.059

− 1.955

− 1.149

− 0.486

p value

0.953

0.051

0.251

0.627

Effect size (r)

  

− 0.270

− 0.114

  1. PEFR Peak expiratory flow rate.
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