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Table 3 Results of univariate logistic regression to analyze factors associated with alexithymia in patients with COPD (TAS-20 > 60)

From: Prevalence of and factors associated with alexithymia among patients with chronic obstructive pulmonary disease in China: a cross-sectional study

Variable

β

χ2

P

OR

95% CI

Male

0.440

5.325

0.020

1.554

1.022–2.359

Age

− 0.180

10.467

0.003

0.835

0.704–0.991

BMI

− 0.155

12.178

0.010

0.856

0.742–0.988

Smoking

0.438

4.531

0.045

1.551

1.010–2.377

Duration of disease

− 0.104

9.253

0.041

0.901

0.814–0.998

HADS-A

0.263

30.623

 < 0.001

1.301

1.182–1.432

HADS-D

0.197

25.452

 < 0.001

1.218

1.076–1.378

mMRC

0.315

32.251

 < 0.001

1.371

1.255–1.496

SGRQ

0.623

36.894

 < 0.001

1.865

1.457–2.386

ACCI

0.258

27.012

 < 0.001

1.294

1.116–1.475

GOLD grade

0.304

27.495

 < 0.001

1.356

1.212–1.515

  1. Alexithymia (TAS-20 > 60) is considered as a dependent variable, whereas sex, age, BMI, smoking, drinking, duration of disease, FEV1% expected value, mMRC scores, HADS-A scores, HADS-D scores, SGRQ scores, and ACCI scores are independent variables. BMI, body mass index; FEV1, forced expiratory volume in 1 s; HADS-A, Hospital Anxiety and Depression Scale for anxiety; HADS-D, Hospital Anxiety and Depression Scale for depression; mMRC, Modified British Medical Research Council; SGRQ, St. George's respiratory questionnaire; ACCI age-adjusted Charlson comorbidity index; GOLD, Global Initiative for Chronic Obstructive Lung Disease