Table 2.

Association between mitochondrial haplogroups and Depressive symptoms.

	All cohort				Matched (for age and sex)
	Unadjusted OR (95%CI)	P value	Fully-adjusted ORa (95%CI)	P value	Unadjusted OR (95%CI)	P value	Fully-adjusted ORa (95%CI)	P value
H	1 [reference]		1 [reference]		1 [reference]		1 [reference]
I	0.77 (0.23–2.50)	0.66	0.57 (0.17–1.91)	0.36	0.51 (0.15–1.74)	0.29	0.37 (0.11–1.28)	0.12
J	1.05 (0.67–1.64)	0.83	0.99 (0.63–1.56)	0.97	1.00 (0.62–1.62)	0.99	0.93 (0.56–1.52)	0.76
K	1.21 (0.77–1.91)	0.41	1.32 (0.83–2.11)	0.24	1.30 (0.79–2.13)	0.31	1.36 (0.81–2.28)	0.25
Others	0.61 (0.22–1.70)	0.35	0.50 (0.18–1.43)	0.20	0.72 (0.24–2.12)	0.55	0.45 (0.14–1.43)	0.18
SuperHV	1.39 (0.72–2.67)	0.33	1.22 (0.63–2.38)	0.56	1.08 (0.54–2.18)	0.82	1.07 (0.52–2.22)	0.85
T	0.99 (0.65–1.51)	0.97	1.02 (0.66–1.57)	0.94	0.95 (0.61–1.50)	0.83	0.94 (0.58–1.50)	0.78
U	0.76 (0.52–1.11)	0.16	0.78 (0.53–1.14)	0.20	0.84 (0.56–1.27)	0.41	0.82 (0.54–1.50)	0.37
V	0.89 (0.42–1.88)	0.89	0.83 (0.39–1.79)	0.64	0.66 (0.30–1.43)	0.29	0.56 (0.25–1.27)	0.17
W	1.91 (0.84–4.35)	0.12	1.74 (0.75–4.07)	0.20	2.12 (0.83–5.44)	0.12	2.17 (0.80–5.91)	0.13
X	1.15 (0.40–3.26)	0.80	1.07 (0.36–3.15)	0.91	1.05 (0.34–3.23)	0.93	1.00 (0.32–3.21)	0.99

Notes:

All the data are presented as odds ratios (ORs) with their 95% confidence intervals.

Abbreviations: CI: confidence intervals; OR: odds ratio.

^aFully-adjusted model included as covariates: age (as continuous); sex; body mass index (as continuous); education (degree vs. others); smoking habits (current and previous vs. others); yearly income (categorized as ≥ or < 50,000$ and missing data); Physical Activity Scale for Elderly score (as continuous); Charlson co-morbidity index (as continuous).