Which is a non modifiable risk factor?

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E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) p. 42-44
Practise the full NORCET 5 Prelims - Sept 2023 (Shift-2)
Attempt every question from this paper in a timed mock, then review the full solution for each one.