Table S1.

Detailed search strategy

1. [Population: depressed patients]

2. exp depression disorder/

3. Depression/

4. Depress*.ti.

5. (Depress* adj3 [minor or major or unipolar or disorder* of severe or moderate or symptom* or recurren* or score*]).tw.

6. or/2–5

7. [Issue: oxidative stress]

8. Oxidative stress/

9. Oxidative* adj3 (stress or status).tw.

10. or/8–9

11. [Comparator: implied]

12. [Outcomes: measurable oxidative stress markers]

13. exp isoprostanes/

14. Dinoprost/

15. Lipid peroxides/

16. exp oxidation-reduction/

17. exp malondialdehyde/[includes TBARS: Thiobarbituric Acid Reactice Substances]

18. (Isoprostanes or glutathione* or malondialdehyde*).tw.

19. (Lipid hydroperoxide* or lipid peroxidation or lipid oxidation or 4-hydroxynonenal or 4-hydroxyhexenal or TBARS).tw.

20. or/16–19

21. 6 and 10 and 20