Skip to main content

Table 1 Baseline characteristics before and after propensity‑score matching analysis

From: Association between driving and depression in older adults: findings from an ancillary study of a prospective cohort

 

Before matching

N = 717

After matching

N = 252

Non drivers

n = 229 (31.9%)

Drivers

n = 488 (68.1%)

Non drivers

n = 126 (50%)

Drivers

N = 126 (50%)

SMD

 

Age (years)*

79.0 (6.1)

75.3 (5.6)

76.9 (6)

76.8 (5.6)

0.01

 

Physiological age*

      

 Less than chronological age

74 (32.3)

146 (29.9)

45 (35.7)

37 (29.4)

0.06

 

 Equal to chronological age

137 (59.8)

323 (66.2)

73 (57.9)

80 (63.5)

0.06

 

 More than chronological age

18 (7.9)

19 (3.9)

8 (6.3)

9 (7.1)

0.01

 

Female (%)*

196 (85.6)

161 (33)

99 (78.6)

94 (74.6)

0.04

 

ADL*

5.9 (0.3)

6 (0.2)

5.9 (0.2)

5.9 (0.2)

0.05

 

IADL*

3.6 (0.7)

3.9 (0.5)

3.8 (0.6)

3.9 (0.5)

0.08

 

Professional caregiver*

58 (25.3)

50 (10.2)

18 (14.3)

17 (13.5)

0.01

 

BMI (kg/m²)

      

 < 25

69 (30.1)

119 (24.4)

37 (29.4)

34 (27)

0.02

 

 25–30

91 (39.7)

219 (44.9)

54 (42.9)

59 (46.8)

0.04

 

 > 30

69 (30.1)

150 (30.7)

35 (27.8)

33 (26.2)

0.02

 

Education level*

      

 Primary school

121 (52.8)

180 (36.9)

63 (50)

58 (46)

0.04

 

 Secondary school

74 (32.3)

184 (37.7)

40 (31.7)

44 (34.9)

0.01

 

 High school or higher

34 (14.8)

124 (25.4)

23 (18.3)

24 (19)

0.01

 

Living area*

      

 Rural/Semi-rural

98 (42.8)

290 (59.4)

61 (48.4)

68 (54.0)

0.056

 

 Urban area

131 (57.2)

198 (40.6)

65 (51.6)

58 (46.0)

 

Professional status*

      

 Never had professional activity

71 (31.0)

31 (6.4)

27 (21.4)

23 (18.3)

0.03

 

 Currently working or retired

158 (69.0)

457 (93.6)

99 (78.6)

103 (81.7)

 

Number of comorbidities*

3.7 (1.4)

3.4 (1.5)

3.5 (1.3)

3.3 (1.5)

0.095

 

 Arterial diseases

30 (13.1)

78 (16)

15 (11.9)

13 (10.3)

0.01

 

 Atrial fibrillation*

63 (27.5)

181 (37.1)

33 (26.2)

38 (30.2)

0.04

 

 Chronic pain*

169 (73.8)

271 (55.5)

87 (69)

87 (69)

0.00

 

 Diabetes (type 2)

86 (37.6)

206 (42.2)

45 (35.7)

45 (35.7)

0.00

 

 MMSE < 27*

76 (33.2)

100 (20.5)

32 (25.4)

37 (29.4)

0.04

 

 Fall in the past year*

25 (10.9)

23 (4.7)

8 (6.3)

7 (5.6)

0.01

 

 History of stroke

9 (3.9)

12 (2.5)

3 (2.4)

2 (1.6)

0.01

 

 History of coronary artery disease

20 (8.7)

51 (10.5)

10 (7.9)

9 (7.1)

0.01

 

 Hypertension

165 (72.1)

329 (67.4)

86 (68.3)

85 (67.5)

0.01

 

 Osteoporosis*

43 (18.8)

33 (6.8)

17 (13.5)

13 (10.3)

0.03

 

 Chronic respiratory diseases

20 (8.7)

68 (13.9)

13 (10.3)

10 (7.9)

0.01

 

 Polypharmacy*

146 (63.8)

268 (54.9)

69 (54.8)

64 (50.8)

0.04

 

 Antidepressant treatment at inclusion

12 (5.2)

20 (4.1)

6 (4.8)

7 (5.6)

0.01

 
  1. Note. ADL: Activities of Daily Living; BMI: Body Mass Index; MMSE: Mini Mental State Evaluation; IADL; Instrument of activity daily living SMD: Standardized mean difference. Data presented as mean (SD) or count (%)
  2. *p < 0.05 before matching