Skip to main content

Table 2 Odds ratios of dementia among older adults with depression using selective serotonin reuptake inhibitors (SSRIs)/serotonin and norepinephrine reuptake inhibitors (SNRIs) compared to those receiving psychotherapy

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

 

Crude incidence (%)b

OR (95% CI)c

Marginal effect (%)b

SSRI/SNRI

Psychotherapy

Crude

Adjusted

Main analysis: SSRI/SNRI vs. psychotherapy

16.4

11.8

1.46 (0.97, 2.20)

1.36 (1.06, 1.74)a

31.0 (6.6, 55.3)a

Subgroup analysis stratified by

Age

 < 65 years

14.5

12.6

1.18 (0.75, 1.87)

1.23 (0.93, 1.62)

20.6 (-6.6, 47.7)

 ≥ 65 years

19.3

9.1

2.38 (1.05, 5.41)a

1.73 (1.09, 2.75)a

54.6 (10.2, 98.9)a

Sex

 Male

17.5

13.0

1.42 (0.81, 2.50)

1.34 (0.95, 1.90)

29.5 (-3.5, 62.4)

 Female

15.9

11.1

1.52 (0.91, 2.54)

1.38 (1.02, 1.86)a

32.3 (3.2, 61.5)a

Race

 White

15.0

8.9

1.81 (1.00, 3.27)

1.48 (1.10, 1.98)a

38.7 (12.1, 65.4)a

 Black

18.1

17.6

1.04 (0.62, 1.74)

0.76 (0.48, 1.19)

-25.5 (-54.1, 3.1)

PHQ-2 score

 0-2

15.6

11.7

1.39 (0.83, 2.33)

1.35 (1.00, 1.81)a

29.8 (1.2, 58.3)a

 3-6

23.4

14.9

1.75 (0.96, 3.20)

1.39 (0.90, 2.15)

33.9 (-0.8, 68.6)

Concomitant antidepressants other than SSRI/SNRI

 Yes

31.3

5.6

7.67 (6.93, 8.49)a

3.74 (1.55, 9.07)a

155.3 (153.3, 157.3)a

 No

16.1

12.0

1.41 (0.94, 2.13)

1.34 (1.04, 1.73)a

29.5 (5.1, 53.8)a

Underlying cognitive impairment

 Yes

21.4

15.5

1.49 (0.99, 2.24)

1.06 (0.80, 1.42)

6.3 (-18.1, 30.7)

 No

15.4

10.7

1.51 (0.89, 2.57)

1.49 (1.10, 2.03)a

39.9 (9.9, 69.9)a

Sensitivity analyses

 1:1 nearest neighbor PS matching

16.4

11.8

1.46 (0.97, 2.20)

1.27 (1.18, 1.37)a

28.0 (5.1, 50.9)a

 Removing comedications from PS estimation

16.4

11.8

1.46 (0.97, 2.20)

1.12 (1.05, 1.20)a

22.0 (9.1, 34.8)a

  1. Abbreviations: CI Confidence interval, OR odds ratio, PS Propensity score, RRD Relative risk difference, SNRI Serotonin and norepinephrine reuptake inhibitors, SSRI Selective serotonin reuptake inhibitors
  2. aStatistically significant
  3. bThe crude incidence represents the incidence of dementia in the overall population (accounted for the survey design)
  4. cThe odds ratio represents the population average treatment effect in the treated (accounted for the survey design)
  5. bThe marginal effect represents the population average treatment effect (accounted for the survey design)