Table 1 Participant characteristics.

From: Shorter telomere length predicts poor antidepressant response and poorer cardiometabolic indices in major depression

 

MDD (n = 48)

Non-responders (n = 22)

Responders (n = 10)

NR versus R p value

Sociodemographic characteristics

Age, years

34.9 (10.7)

37.1 (11.7)

35.8 (8.78)

0.732

Sex, female n (%)

26 (54.2%)

11 (50.0%)

6 (60.0%)

χ2 = 0.020 p = 0.886

Race/ethnicity, n (%)

White

22 (45.8%)

13 (59.1%)

5 (50.0%)

χ2 = 2.004 p = 0.735

Black

4(8.3%)

1 (4.55%)

1 (10.0%)

Asian

12(25%)

5 (22.7%)

1 (10.0%)

More than one

6(12.5%)

2 (9.09%)

2 (20.0%)

Other

4(8.3%)

1 (4.55%)

1 (10.0%)

Years of education (n = 47)

16.0 (2.3) n = 47

15.8 (2.43)

16.3 (2.67)

0.602

Lifestyle factors

Body mass index

25.2 (4.1)

25.3 (4.07)

24.7 (5.02)

0.778

Smoking status, n (%)

Never

31 (64.6%)

15 (68.1%)

4 (40%)

χ2 = 3.0275 p = 0.220

Former

13 (27.1%)

6 (27.3%)

4 (40%)

Current

4 (8.3%)

1 (4.6%)

2 (20%)

HgbA1c

5.3 (0.38)

5.30 (0.35)

5.12 (0.48)

0.307

MAP

86.6 (9.8)

88.8 (10.1)

83.6 (7.80)

0.125

Triglyceride (TyG) index (n = 45)

4.44 (0.29)

4.43 (0.31)

4.44 (0.39)

0.967

Cardiometabolic Risk (CR) score

4.05 (0.11)

4.07 (0.10)

4.01 (0.13)

0.275

Allostatic Load Score (n = 45)

3 (1.71)

3.20 (1.67)

2.70 (2.16)

0.531

Symptoms

Hamilton Depression Rating Scale (HDRS)

19.4 (3.4)

19.4 (2.89)

18.3 (3.62)

0.408

Perceived stress scale (PSS) (n = 45)

26.0 (5.7)

25.2 (5.63)

26.7 (6.41)

0.529

Duration of depression (months) (n = 42)

190.6 (162)

226 (172)

152 (143)

0.329

Telomere/telomerase variables

T/S ratio

0.96 (0.18)

0.89 (0.16)

1.04 (0.10)

0.005

Telomerase activity (n = 47)

11.5 (12.4)

14.4 (16.7)

7.36 (4.09)

0.375

  1. Demographics calculated using only available data. Sample sizes are indicated in parentheses where missing values exist. Missing data (except for HDRS, PSS, and duration of depression) were imputed with the mean for subsequent analyses.
  2. Significant values are in bold.