TABLE 3.

Incidence rate of chronic cough in participants with complete follow up

Baseline characteristics	At risk n	Incident chronic cough n	Total follow-up years	Incidence rate per 1000 person-years (95% CI)	Incidence rate ratio (95% CI)
Participants	6245	439	37 737	11.6 (10.6–12.8)
Sex
Male	2634	190	15 887	12.0 (10.3–13.8)	Ref.
Female	3611	249	21 850	11.4 (10.0–12.9)	0.95 (0.79–1.16)
Age ≥70 years
No	4546	318	26 811	11.9 (10.6–13.2)	Ref.
Yes	1699	121	10 926	11.1 (9.2–13.2)	0.93 (0.75–1.15)
Smoking status
Never	2060	129	12 427	10.4 (8.7–12.3)	Ref.
Past	3216	216	19 559	11.0 (9.7–12.6)	1.06 (0.85–1.33)
Current	968	94	5746	16.4 (13.4–20.0)	1.57 (1.20–2.07)
Current smokers
Female	579	41	3435	11.9 (8.6–16.2)	Ref.
Male	389	53	2311	22.9 (17.2–30.0)	1.92 (1.25–2.96)
Obesity
No	4549	299	27 517	10.9 (9.7–12.2)	Ref.
Yes	1440	120	8676	13.8 (11.5–16.5)	1.27 (1.02–1.58)