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Table 1 General clinical characteristics of patients

From: Positive effect of deep diaphragmatic breathing training on gastroesophageal reflux-induced chronic cough: a clinical randomized controlled study

 

Training group

(n = 30)

Control group

(n = 30)

Test results

Gender (M/F)

18/12

16/14

χ2 = 6.402, P = 0.602

Ages (years)

45.90 (13.19)

50.43 (15.35)

t=-1.227, P = 0.225

Cough duration (mo)

9.00 (2.75;12.50)

12.00 (3.00;21.00)

Z=-0.580, P = 0.562

Height (cm)

167.33 (7.20)

166.40 (9.38)

t = 0.432, P = 0.667

Weight (Kg)

64.83 (9.30)

67.83 (10.55)

t=-1.168, P = 0.247

BMI (Kg/m2)

23.10 (2.72)

24.53 (3.58)

t=-1.739, P = 0.087

Lung function (%)

   

FEV1% pred

100.93 (13.16)

102.19 (16.07)

t = 0.263, P = 0.794

FVC% pred

100.70 (11.06)

100.45 (15.83)

t = 0.056, P = 0.956

FEV1/FVC%

84.58 (8.58)

86.12 (8.90)

t = 0.534, P = 0.597

Cough symptom score

   

Daytime

3.00 (3.00;4.00)

3.00 (2.00;4.00)

Z=-1.063, P = 0.288

Nighttime

2.00 (1.00;2.00)

1.00 (1.00;2.00)

Z=-0.621, P = 0.535

Capsaicin cough threshold

   

C2 (µmol/L)

0.86 (0.05)

0.88 (0.08)

t=-0.896, P = 0.374

C5 (µmol/L)

0.93 (0.18)

0.94 (0.17)

t=-0.221, P = 0.826

  1. Data are presented as mean (SD), median (Q1; Q3)
  2. FEV1, forced expiratory volume in one second; FVC, forced vital capacity; C2, capsaicin solution concentration with ≥ 2 coughs; C5, capsaicin solution concentration for ≥ 5 coughs