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Table 1 Baseline characteristics of participants in 2011

From: Determinants of depressive symptom trajectories in self-reported chronic obstructive pulmonary disease patients

Variable

Distribution

Number of imputed data

Age (years), mean(SD)

61.4 (9.3)

0

Male, n (%)

731 (56.8)

0

Rural, n (%)

1030 (80.1)

10

Education level, n (%)

0

 Elementary school or below

946 (73.6)

 

 Middle school

214 (16.6)

 

 High school or above

126 (9.8)

 

Currently married, n (%)

1065 (82.8)

0

Smoking status, n (%)

0

 Current smoker

610 (47.4)

 

 Former smoker

207 (16.1)

 

 None smoker

469 (36.5)

 

Drinking status, n (%)

322

 Current drinker

896 (69.7)

 

 Former drinker

193 (15.0)

 

 None drinker

197 (15.3)

 

Sleeping duration (h), mean (SD)

5.9 (2.0)

8

Chronic conditions, n (%)

70

 0–2

851 (66.2)

 

 > 2

435 (33.8)

 

SRH, n (%)

0

 Poor

1155 (89.8)

 

 Good

131 (10.2)

 

CES-D score

10.5 (6.7)

0

Depressive symptoms

0

 Yes

764 (59.4)

 

 No

522 (40.6)

 

BADL disability, n (%)

353 (27.4)

212

IADL disability, n (%)

374 (29.1)

6

BMI (kg/m2), mean (SD)

22.5 (4.1)

176

HGS (kg), mean (SD)

30.1 (10.1)

193

Pulse (bpm), mean (SD)

74.4 (11.1)

172

Systolic pressure (mmHg), mean (SD)

131.5 (21.5)

170

Diastolic pressure (mmHg), mean (SD)

75.5 (12.2)

171

PEF (l/min), mean (SD)

209.6 (108.6)

216

  1. SRH self-rated health, CES-D scale Center for Epidemiological Studies Depression scale, BADL basic activities of daily living, IADL instrumental activities of daily living, BMI body mass index, HGS hand grip strength, PEF peak expiratory flow