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Table 1 Baseline characteristics of the study population: 2010-2019 Medical Expenditure Panel Survey Data

From: Association between first-line antidepressant use and risk of dementia in older adults: a retrospective cohort study

 

Unweighted samplea (n=2,710)

Weighted sample using sIPTWa (n=1,858)

 

SSRIs/SNRIs (n=2,402)

Psychotherapy (n=308)

ASMD

SSRIs/SNRIs (n=1,652)

Psychotherapy (n=206)

ASMD

Age, mean (SD)

63 (9.2)

59.2 (8.0)

0.43*

60.5 (7.8)

60.8 (8.4)

-0.03

PHQ-2, median (IQR)

1.4 (1.7)

1.8 (1.9)

0.21*

1.4 (1.8)

1.4 (1.8)

0.04

Cognitive impairment, n (%)

451 (18.8)

90 (29.2)

0.25*

337 (20.4)

44 (21.5)

-0.03

Female, n (%)

1688 (70.3)

187 (60.7)

0.20*

1133 (68.6)

143 (69.3)

-0.02

Race, n (%)

 White

1783 (87.0)

211 (78.7)

0.22*

1404 (84.9)

170 (82.3)

0.07

 Black

161 (7.9)

42 (15.7)

0.24*

153 (9.3)

26 (12.7)

-0.11*

 Others

106 (5.2)

15 (5.6)

0.02

96 (5.8)

10 (5.1)

0.03

Hispanic, n (%)

271 (11.3)

34 (11.0)

0.01

196 (11.9)

24 (11.8)

0

Region, n (%)

 Northeast

356 (14.8)

85 (27.6)

0.32*

286 (17.3)

33 (16.2)

0.03

 Midwest

593 (24.7)

79 (25.6)

0.02

446 (27)

55 (26.5)

0.01

 South

922 (38.4)

74 (24.0)

0.31*

512 (31)

71 (34.5)

-0.07

 West

531 (22.1)

70 (22.7)

0.01

409 (24.7)

47 (22.8)

0.05

Education, n (%)

 No degree

284 (15.4)

29 (11.9)

0.10

223 (13.5)

32 (15.5)

-0.06

 General education development

87 (4.7)

11 (4.5)

0.01

77 (4.7)

11 (5.4)

-0.03

 High school

832 (45.0)

82 (33.6)

0.24*

657 (39.7)

74 (36.1)

0.08

 Higher education

473 (25.6)

83 (34.0)

0.18*

509 (30.8)

67 (32.5)

-0.04

 Others

171 (9.3)

39 (16.0)

0.20*

186 (11.3)

22 (10.6)

0.02

Poverty, n (%)

 Poor/negative

335 (13.9)

67 (21.8)

0.20*

252 (15.2)

33 (16.2)

-0.03

 Near poor

133 (5.5)

17 (5.5)

0.00

83 (5)

12 (6)

-0.04

 Low income

358 (14.9)

47 (15.3)

0.01

247 (15)

34 (16.6)

-0.05

 Middle income

716 (29.8)

65 (21.1)

0.20*

421 (25.5)

54 (26.1)

-0.01

 High income

860 (35.8)

112 (36.4)

0.01

650 (39.3)

72 (35.1)

0.09

Marital status, n (%)

 Married

1323 (55.1)

131 (42.5)

0.25*

882 (53.4)

107 (51.7)

0.03

 Separated, Widowed or Divorced

175 (7.3)

48 (15.6)

0.26*

131 (7.9)

17 (8.1)

-0.01

 Never married

904 (37.6)

129 (41.9)

0.09

639 (38.7)

83 (40.2)

-0.03

Physical inactivity, n (%)

891 (37.1)

119 (38.6)

0.03

600 (36.3)

81 (39.4)

-0.06

Smoking, n (%)

356 (18.5)

52 (21.9)

0.09

325 (19.7)

30 (14.8)

0.13*

Limited access to health care, n (%)

224 (12.9)

36 (16.9)

0.11*

242 (14.6)

26 (12.4)

0.06

Comorbidities, n (%)

 Cancer

14 (0.6)

2 (0.6)

0.01

9 (0.5)

2 (0.9)

-0.04

 Type 2 diabetes

41 (1.7)

5 (1.6)

0.01

30 (1.8)

5 (2.4)

-0.04

 Hyperlipidemia

67 (2.8)

13 (4.2)

0.08

57 (3.5)

12 (5.9)

-0.11*

 Hypertension

61 (2.5)

7 (2.3)

0.02

42 (2.6)

7 (3.5)

-0.05

 Ischemic stroke

1 (0)

0 (0)

0.03

0 (0)

0 (0)

0

 Chronic heart disease

18 (0.7)

1 (0.3)

0.06

9 (0.5)

1 (0.7)

-0.02

 Osteoarthritis

29 (1.2)

3 (1)

0.02

19 (1.2)

1 (0.6)

0.07

 Parkinson’s disease

1 (0)

0 (0)

0.03

0 (0)

0 (0)

0

 Anxiety

373 (15.5)

27 (8.8)

0.21*

177 (10.7)

15 (7.3)

0.12*

 Sleep disorder

23 (1.0)

6 (1.9)

0.08

19 (1.1)

2 (0.8)

0.03

 Schizophrenia

0 (0)

3 (1.0)

0.14*

0 (0)

0 (0)

0

 Bipolar disorder

14 (0.6)

14 (4.5)

0.25*

6 (0.3)

0 (0.1)

0.06

Comedications, n (%)

 Analgesics

201 (8.4)

27 (8.8)

0.01

146 (8.9)

20 (9.5)

-0.02

 Benzodiazepines

56 (2.3)

14 (4.5)

0.12*

43 (2.6)

6 (3)

-0.02

 Anxiolytics, sedatives, and hypnotics

62 (2.6)

6 (1.9)

0.04

40 (2.4)

7 (3.3)

-0.05

 Antidepressants other than SSRI/SNRI

46 (1.9)

12 (3.9)

0.12*

33 (2)

3 (1.4)

0.04

 Antipsychotics

13 (0.5)

17 (5.5)

0.29*

2 (0.1)

1 (0.4)

-0.06

 Antiparkinsonian agents

15 (0.6)

4 (1.3)

0.07

13 (0.8)

0 (0)

0.13*

  1. Abbreviation: sIPTW Stabilized inverse probability treatment weighting, SSRI Selective serotonin reuptake inhibitors, SNRI Serotonin and norepinephrine reuptake inhibitors, SD Standard deviation, ASMD Absolute standardized mean difference
  2. * An ASMD<=0.10 suggests balance in the given variable between the groups.
  3. aResults shown in Table 1 were calculated within the survey sample.