Table 1 Differences in demographic data and clinical information between PSD and non-PSD groups.

From: Development and interpretation of a machine learning risk prediction model for post-stroke depression in a Chinese population

Variables

Total (N = 507)

PSD (n = 158)

Non-PSD (n = 349)

P-value

General information

Gender (Men), n (%)

310(61.14)

85(53.80)

225(64.47)

0.022

Age, years, mean(± SD)

63.84 ± 9.36

64.03 ± 9.36

63.76 ± 9.36

0.770

Educational levels, n(%)

   

0.021

 Primary school or below

159(31.36)

50(31.65)

109(31.23)

 

 Junior high school or senior high school

127(25.05)

51(32.28)

76(21.78)

 

 University or above

221(43.59)

57(36.08)

164(46.99)

 

Marital status, n(%)

   

 < 0.001

 Married

473(93.29)

137(86.71)

336(96.28)

 

 Unmarried, divorced or widowed

34(6.71)

21(13.29)

13(3.73)

 

Type of work, n(%)

   

0.201

 Manual labor

202(39.84)

72(45.57)

130(37.25)

 

 Mental labor

170(33.53)

49(31.01)

121(34.67)

 

 Both manual and mental labor

135(26.63)

37(23.42)

98(28.08)

 

Heart rate, times/min, mean(± SD)

75.99 ± 11.15

76.49 ± 11.45

75.76 ± 11.01

0.499

 SBP, mmHg, mean(± SD)

145.77 ± 20.45

147.55 ± 21.34

144.97 ± 19.98

0.188

 DBP, mmHg, mean(± SD)

86.36 ± 13.36

86.71 ± 14.93

86.20 ± 12.58

0.694

Smoking, n(%)

125(24.66)

48(30.38)

77(22.06)

0.044

Drinking, n(%)

116(22.88)

44(27.85)

72(20.63)

0.073

Hypertension, n(%)

376(74.16)

126(79.75)

250(71.63)

0.053

Coronary heart disease, n(%)

102(20.12)

31(19.62)

71(20.34)

0.851

Diabetes, n(%)

231(45.56)

83(52.53)

148(42.41)

0.034

Hyperlipidemia, n(%)

350(69.03)

119(75.32)

231(66.19)

0.040

Atrial fibrillation, n(%)

31(6.11)

17(10.76)

14(4.01)

0.003

Family history of depression, n(%)

66(13.02)

44(12.61)

22(13.92)

0.683

Imaging test parameters

Focal location

 Frontal lobe lesion, n(%)

151(29.78)

74(46.84)

77(22.06)

 < 0.001

 Parietal lobe lesion, n(%)

66(13.02)

24(15.19)

42(12.03)

0.328

 Occipital lobe lesion, n(%)

63(12.43)

25(15.82)

38(10.89)

0.119

 Temporal lobe lesion, n(%)

64(12.62)

30(18.99)

34(9.74)

0.004

 Basal ganglia lesion, n(%)

233(45.96)

87(55.06)

146(41.83)

0.006

 Paraventricular lesion, n(%)

37(7.298)

10(6.329)

27(7.736)

0.573

 Brain lesion, n(%)

130(25.64)

38(24.05)

92(26.36)

0.581

 Cerebellar lesion, n(%)

51(10.06)

21(13.29)

30(8.60)

0.104

 Thalamic lesion, n(%)

74(14.60)

20(12.66)

54(15.47)

0.406

 Pontine lesion, n(%)

36(7.10)

8(5.06)

28(8.02)

0.229

 Brain stem lesion, n(%)

57(11.24)

21(13.29)

36(10.32)

0.326

 Radiative crown lesion, n(%)

145(28.60)

47(29.75)

98(28.08)

0.701

 Hemioval central lesion, n(%)

35(6.90)

13(8.23)

22(6.30)

0.429

Number of lesions, n(%)

   

 < 0.001

 Single

104(20.51)

15(9.49)

89(25.50)

 

 Multiple

403(79.49)

143(90.51)

260(74.50)

 

Focal side, n(%)

   

0.363

 Left

162(31.95)

48(30.38)

114(32.67)

 

 Right

101(19.92)

27(17.09)

74(21.20)

 

 Left and right

244(48.13)

83(52.53)

161(46.13)

 

Laboratory test parameters

 WBC, 109/L, mean(± SD)

6.65 ± 2.28

7.26 ± 2.75

6.38 ± 1.97

 < 0.001

 ANC, 109/L, mean(± SD)

5.49 ± 8.46

5.33 ± 5.06

5.55 ± 9.61

0.787

 RBC, 1012/L, mean(± SD)

4.41 ± 0.53

4.42 ± 0.53

4.40 ± 0.53

0.774

 HGB, g/L, mean(± SD)

132.38 ± 16.50

130.37 ± 17.23

133.28 ± 16.08

0.066

 HCT, mean(± SD)

40.15 ± 4.96

39.60 ± 5.65

40.39 ± 4.59

0.122

 RDW, fL, mean(± SD)

43.32 ± 4.67

44.24 ± 5.25

42.90 ± 4.32

0.003

 PLT, 109/L, mean(± SD)

222.32 ± 75.09

220.67 ± 92.78

223.07 ± 65.52

0.770

 PDW, fL, M(P25, P75)

11.50(10.50, 13.00)

11.30(10.40, 12.90)

11.60(10.50, 13.10)

0.417

 ALT, U/L, M(P25, P75)

17.00(12.00, 25.00)

16.00(11.00, 23.00)

17.00(13.00, 26.00)

0.095

 AST, U/L, M(P25, P75)

18(16, 23)

18(15, 25)

18(16, 23)

0.961

 ALB[g/L, mean(± SD)]

37.89 ± 4.00

36.61 ± 4.41

38.47 ± 3.66

 < 0.001

 GLB, g/L, mean(± SD)

26.08 ± 3.98

25.93 ± 4.01

26.14 ± 3.97

0.566

 PAB, mg/L, mean(± SD)

231.80 ± 57.63

222.39 ± 61.43

236.06 ± 55.29

0.013

 SCr, umol/L, M(P25, P75)

55(46, 68)

54(46, 63)

56(47, 71)

0.036

 SUA, umol/L, M(P25, P75)

301(238, 367)

281(223, 358)

305(246, 368)

0.090

 FBG, mmol/L, mean(± SD)

6.50 ± 1.96

6.78 ± 2.23

6.38 ± 1.81

0.030

 TG, mmol/L, M(P25, P75)

1.20(0.89, 1.70)

1.07(0.79, 1.87)

1.22(0.92, 1.65)

0.338

 TC, mmol/L, mean(± SD)

4.15 ± 1.40

4.06 ± 1.24

4.20 ± 1.47

0.311

 HDL-C, mmol/L, mean(± SD)

1.06 ± 0.28

1.03 ± 0.26

1.07 ± 0.29

0.138

 LDL-C, mmol/L, mean(± SD)

2.44 ± 0.98

2.49 ± 1.04

2.42 ± 0.95

0.430

 APOA1, g/L, mean(± SD)

1.29 ± 0.27

1.23 ± 0.24

1.31 ± 0.29

0.001

 APOB, g/L, mean(± SD)

0.82 ± 0.30

0.83 ± 0.30

0.81 ± 0.30

0.530

 Lp(a), mg/L, M(P25, P75)

18.80(11.20, 39.70)

19.20(13.20, 41.90)

18.30(10.30, 38.00)

0.197

Scale evaluation parameter

 NIHSS score, points, mean(± SD)

3.82 ± 3.90

5.99 ± 4.86

2.83 ± 2.88

 < 0.001

 PSQI score, points, mean(± SD)

6.98 ± 6.30

11.99 ± 5.53

4.71 ± 5.23

 < 0.001

 MMSE score, points, mean(± SD)

25.77 ± 3.92

23.84 ± 3.92

23.84 ± 3.92

 < 0.001

 Barthel score, points, mean(± SD)

71.30 ± 15.80

69.43 ± 17.13

72.15 ± 15.09

0.088

 APGAR score, points, mean(± SD)

6.91 ± 1.48

6.73 ± 2.15

6.99 ± 1.03

0.164

Medication information, n(%)

 Antihypertensive drugs, n(%)

329(64.89)

107(67.72)

222(63.61)

0.369

 Lipid-lowering drugs, n(%)

131(25.84)

42(26.58)

89(25.50)

0.797

 Hypoglycemic drugs, n(%)

183(36.10)

62(39.24)

121(34.67)

0.321

  1. Data were expressed in the following forms: mean(± SD), M(P25,P75), or n(%). Abbreviations: PSD: Post-stroke depression; SBP: Systolic blood pressure; DBP: Diastolic blood pressure; WBC: White blood cell; ANC: Absolute value of neutrophil count; RBC: Red blood cell; HGB: Hemoglobin; HCT: Hematocrit; RDW: Red blood cell distribution width; PLT: Platelet; PDW: Platelet distribution width; ALT: Alanine aminotransferase; AST: Aspartate aminotransferase; ALB: Albumin; GLB: Globulin; PAB: Prealbumin; SCr: Serum creatinine; SUA: Serum uric acid; FBG: Fasting blood glucose; TG: Triglyceride; TC: Total cholesterol; HDL-C: High density lipoprotein cholesterol; LDL-C: Low density lipoprotein cholesterol; APOA1: Apolipoprotein A1; APOB:Apolipoprotein B; Lp(a): Lipoprotein (a); NIHSS: National institutes of health stroke scale; PSQI: Pittsburgh sleep quality index; MMSE: Mini-mental state examination; APGAR: Family function assessment, including adaptation, partnership, growth, affection, and resolve.