Table 1 Baseline characteristics of studied population, N = 1049.

From: The prevalence, recognition, and treatment of depression and anxiety symptoms among Chinese cardiovascular outpatients

 

Total

No Depression

Depression

 

No Anxiety

Anxiety

 
 

N = 1049

N = 405 (38.6%)

N = 644 (61.4%)

p value

N = 489 (46.6%)

N = 560 (53.4%)

p value

Patient characteristics

       

Age group, n (%)

   

0.084

  

0.497

Young adults

91 (8.7)

45 (49.4)

46 (50.5)

 

45 (49.4)

46 (50.5)

 

The middle-aged

299 (28.5)

113 (37.8)

186 (62.2)

 

146 (48.8)

153 (51.2)

 

The elderly

659 (62.8)

247 (37.5)

412 (62.5)

 

298 (45.2)

361 (54.8)

 

Gender, n (%)

   

0.137

  

0.065

Male

572 (54.5)

233 (40.7)

339 (59.3)

 

282 (49.3)

290 (50.7)

 

Female

477 (45.5)

172 (36.0)

305 (64.0)

 

207 (43.4)

270 (56.6)

 

Region, n (%)

   

< 0.001

  

<0.001

East China

361 (34.4)

176 (48.8)

185 (51.2)

 

210 (58.2)

151 (41.8)

 

North China

175 (16.7)

72 (41.1)

103 (59.9)

 

92 (52.6)

83 (47.4)

 

Northeast China

191 (18.2)

53 (27.7)

138 (72.3)

 

62 (32.5)

129 (67.5)

 

South Central China

252 (24.0)

72 (28.6)

180 (71.4)

 

86 (34.1)

166 (65.9)

 

West China

70 (6.7)

32 (45.7)

38 (54.3)

 

39 (55.7)

31 (44.3)

 

Hospital, n (%)

   

< 0.001

  

0.016

Secondary hospital

132 (12.6)

71 (53.8)

61 (46.2)

 

75 (56.8)

57 (43.2)

 

Tertiary hospital

917 (87.4)

334 (36.4)

583 (63.6)

 

414 (45.1)

503 (54.9)

 

BMI, mean ± SD

24.0 ± 3.2

24.0 ± 3.2

24.0 ± 3.2

0.885

24.1 ± 3.2

23.9 ± 3.2

0.241

Education background, n (%)

   

< 0.001

  

0.040

Primary school and below

230 (21.9)

69 (30.0)

161 (70.0)

 

94 (40.9)

136 (59.1)

 

High school

510 (48.6)

189 (37.0)

321 (63.0)

 

235 (46.1)

275 (53.9)

 

University or above

309 (29.5)

147 (47.6)

162 (52.4)

 

160 (51.8)

149 (48.2)

 

Occupational status, n (%)

   

0.145

  

0.137

Employed

300 (28.6)

129 (43.0)

171 (57.0)

 

152 (50.7)

148 (49.3)

 

Unemployed

231 (22.0)

81 (35.1)

150 (64.9)

 

97 (42.0)

134 (58.0)

 

Retired

518 (49.4)

195 (37.6)

323 (62.4)

 

240 (46.3)

278 (53.7)

 

Family monthly income, n (%)

   

0.030

  

0.398

Less than 4000

260 (24.8)

91 (35.0)

169 (65.0)

 

124 (47.7)

136 (52.3)

 

4000–7999

425 (40.5)

151 (35.5)

274 (64.5)

 

185 (43.5)

240 (56.5)

 

8000–12,000

243 (23.2)

109 (44.8)

134 (55.2)

 

121 (49.8)

122 (50.2)

 

More than 12,000

121 (11.5)

54 (44.6)

67 (55.4)

 

59 (48.8)

62 (51.2)

 

Marital status, n (%)

   

0.210

  

0.035

Married

914 (87.1)

360 (39.4)

554 (60.6)

 

438 (47.9)

476 (52.1)

 

Other

135 (12.9)

45 (33.3)

90 (66.7)

 

51 (37.8)

84 (62.2)

 

Severity of depression or anxiety, n (%)

   

-

  

-

Mild

  

427 (40.7)

  

421 (40.1)

 

Moderate

  

158 (15.1)

  

92 (8.8)

 

Severe

  

59 (5.6)

  

47 (4.5)

 

Cardiovascular diseases

       

Coronary heart disease, n (%)

861 (82.1)

315 (36.6)

546 (63.4)

0.005

389 (45.2)

472 (54.8)

0.056

Post-CABG, n (%)

39 (3.7)

17 (43.6)

22 (56.4)

0.629

15 (38.5)

24 (61.5)

0.381

Post-PCI, n (%)

338 (32.2)

132 (39.0)

206 (61.0)

0.892

155 (45.8)

183 (54.2)

0.785

Myocardial infarction, n (%)

114 (10.9)

29 (25.4)

85 (74.6)

0.003

41 (36.0)

73 (64.0)

0.021

Hypertension, n (%)

666 (63.5)

253 (38.0)

413 (62.0)

0.632

300 (45.0)

366 (55.0)

0.200

Arrhythmia, n (%)

292 (27.8)

106 (36.3)

186 (63.7)

0.378

128 (43.8)

164 (56.2)

0.293

Heart failure, n (%)

107 (10.2)

21 (19.6)

86 (80.4)

< 0.001

36 (33.6)

71 (66.4)

0.006

Undiagnosed heart disease, n (%)

60 (5.7)

23 (38.3)

37 (61.7)

1.000

21 (35.0)

39 (65.0)

0.085

Duration of CVD/years, median [Q1, Q3]

5.0 [2.0, 8.0]

5.0 [2.0, 8.0]

5.0 [2.0, 9.0]

0.412

5.0 [2.0, 8.0]

4.0 [2.0, 8.2]

0.773

Discomfort symptoms

       

Chest pain, n (%)

637 (60.7)

229 (35.9)

408 (64.1)

0.033

275 (43.2)

362 (56.8)

0.007

Chest distress, n (%)

918 (87.5)

337 (36.7)

581 (63.3)

0.001

407 (44.3)

511 (55.7)

< 0.001

Dyspnea, n (%)

283 (27.0)

72 (25.4)

211 (74.6)

< 0.001

93 (32.9)

190 (67.1)

< 0.001

Dizzy, n (%)

391 (37.3)

142 (36.3)

249 (63.7)

0.267

163 (41.7)

228 (58.3)

0.016

Fatigue, n (%)

495 (47.2)

153 (30.9)

342 (69.1)

< 0.001

196 (39.6)

299 (60.4)

< 0.001

Palpitation, n (%)

550 (52.4)

195 (35.4)

355 (64.6)

0.032

220 (40.0)

330 (60.0)

< 0.001

Other clinical comorbidities

       

Diabetes, n (%)

340 (32.4)

110 (32.4)

230 (67.6)

0.005

140 (41.2)

200 (58.8)

0.017

Dyslipidemia, n (%)

626 (59.7)

205 (32.7)

421 (67.3)

< 0.001

269 (43.0)

357 (57.0)

0.005

Cerebrovascular disease, n (%)

262 (25.0)

84 (32.1)

178 (67.9)

0.015

101 (38.5)

161 (61.5)

0.003

EQ-5D-3 L

       

Mobility, n (%)

   

< 0.001

  

< 0.001

Level 1

733 (69.9)

349 (47.6)

384 (52.4)

 

399 (54.4)

334 (45.6)

 

Level 2 or 3

316 (30.1)

56 (17.7)

260 (82.3)

 

90 (28.5)

226 (71.5)

 

Self-care, n (%)

   

< 0.001

  

< 0.001

Level 1

840 (80.1)

377 (44.9)

463 (55.1)

 

441 (52.5)

399 (47.5)

 

Level 2 or 3

209 (19.9)

28 (13.4)

181 (86.6)

 

48 (23.0)

161 (77.0)

 

Usual activities, n (%)

   

< 0.001

  

< 0.001

Level 1

653 (62.2)

333 (51.0)

320 (49.0)

 

376 (57.6)

277 (42.4)

 

Level 2 or 3

396 (37.8)

72 (18.2)

324 (81.8)

 

113 (28.5)

283 (71.5)

 

Pain/Discomfort, n (%)

   

< 0.001

  

< 0.001

Level 1

315 (30.0)

202 (64.1)

113 (35.9)

 

232 (73.6)

83 (26.4)

 

Level 2 or 3

734 (70.0)

203 (27.6)

531 (72.4)

 

257 (35.0)

477 (65.0)

 

Anxiety or depression, n (%)

   

< 0.001

  

< 0.001

Level 1

443 (42.2)

276 (62.3)

167 (37.7)

 

330 (74.5)

113 (25.5)

 

Level 2 or 3

606 (57.8)

129 (21.3)

477 (78.7)

 

159 (26.2)

447 (73.8)

 

Health state utility index, [Q1, Q3]

0.71 [0.63, 0.79]

0.77 [0.71, 1.00]

0.67 [0.59, 0.73]

< 0.001

0.77 [0.71, 1.00]

0.67 [0.57, 0.71]

< 0.001

  1. Plus-minus values are means ± SD;.
  2. Body-mass index (BMI) is the weight in kilograms divided by the square of the height in meters;.
  3. Duration of CVD means the number of years between the start of CVD and the time the patient completed the questionnaire;.
  4. PCI, percutaneous coronary intervention; CABG, coronary artery bypass grafting;.
  5. Q1, first quartile, Q3, third quartile; SD, standard difference;.
  6. PHQ-9 score: 0–4, no depression; 5–9, mild depression; 10–14, moderate depression; 15–27, severe depression; GAD-7 score: 0–4, no anxiety; 5–9, mild anxiety; 10–13, moderate anxiety; 14–21, severe anxiety.
  7. On the European Quality of Life-5 Dimensions (EQ-5D) visual analogue scale, level 1 for “no difficulty”, 2 for “some difficulty”, and 3 for “extreme difficulty”;.
  8. The health state utility index of EQ-5D-3L reflects the patient’s quality of life, with higher index indicating better quality of life.