Table 2.

Pearson and point-biserial correlation coefficients between variables potentially confounded with depression and mean relative LTL at baseline and follow-up in all study participants (N range: 87–116).

Potential predictors	Relative LTL at baseline	Relative LTL at follow- up
Variables assessed at baseline
Age, years	−0.07	−0.29	**
Sex, male, y/n	−0.12	−0.11
Living with partner/married, y/n	−0.01	0.03
MADRS total score	0.05	−0.21	*
HAM-A total score	0.04	−0.21	*
PSS total score	−0.03	−0.15
Lifetime MDD duration, months	−0.02	−0.18
Lifetime antidepressant use, > 6 months, y/n	0.01	−0.18
ETISR-SF total score	−0.04	−0.09
TEQ total score	0.00	−0.07
Lifetime alcohol or substance use disorder, y/n	−0.02	−0.24	*
Lifetime smoking, pack-years	−0.04	−0.16
BMI	−0.08	−0.25	**
Exercised more than once a week, past year, y/n	−0.02	0.04
Variables assessed at follow-up
MADRS total score	n/a	−0.28	**
HAM-A total score	n/a	−0.24	*
PSS total score	n/a	−0.22	*
Lifetime MDD duration, months	n/a	−0.20	*
Lifetime antidepressant use > 6 months, y/n	n/a	−0.23	*
TEQ total score	n/a	−0.03
Lifetime alcohol or substance use disorder, y/n	n/a	−0.21	*
Lifetime smoking, pack-years	n/a	−0.13
BMI	n/a	−0.23	*
Exercised more than once a week, past year, y/n	n/a	0.02

Key:

^*p < 0.05,

^**p < 0.01.

MDD = major depressive disorder, MADRS = Montgomery–Åsberg Depression Rating Scale (range: 0–60, where higher scores indicate greater depression severity), HAM-A = Hamilton Anxiety Rating Scale (range: 0–56, where higher scores indicate greater severity of anxiety), PSS = Perceived Stress Scale (range: 0–40, where higher scores indicate higher perceived stress), ETISR-SF = Early Trauma Inventory Self Report-Short Form, TEQ = Traumatic Events Questionnaire, BMI = body mass index, y/n = yes/no.