Table 2. Incidence of respiratory failure by sex, age, income, occupation and comorbidity and adjusted hazard ratio for patients with non-TB mycobacterial infection compared with comparison subjects without non-TB mycobacterial infection.

	Non-TB mycobacterial infection						Compared to comparisons
		No			Yes
Variables	Case	PY	Rate#	Case	PY	Rate#	IRR*(95% CI)	Adjusted HR†(95% CI)
All	675	66162	10.20	587	13337	44.01	4.31(4.00–4.65)	3.11(2.73–3.54)
Sex
Women	206	24811	8.30	164	5298	30.95	3.73(3.28–4.24)	2.67(2.11–3.39)
Men	469	41351	11.34	423	8038	52.62	4.64(4.22–5.10)	3.32(2.84–3.87)
Age, year
<65	87	43720	1.99	174	9569	18.18	9.14(8.15–10.2)	4.42(3.28–5.96)
≥65	588	22442	26.20	413	3767	109.63	4.18(3.76–4.66)	2.52(2.17–2.92)
Income, NTD†
<15000	459	31229	14.7	375	6477	57.89	3.94(3.55–4.37)	2.88(2.45–3.39)
15000–25000	198	21332	9.28	181	4468	40.51	4.36(3.81–4.99)	3.38(2.68–4.27)
≥25000	18	13601	1.32	31	2391	12.97	9.80(7.86–12.2)	6.36(3.33–12.1)
Occupation
White collar	219	32666	6.70	225	6478	34.73	5.18(4.62–5.81)	3.47(2.79–4.33)
Blue collar	298	25077	11.88	247	5243	47.11	3.96(3.51–4.47)	2.99(2.45–3.64)
Others	158	8287	19.07	115	1591	72.30	3.79(3.12–4.61)	2.93(2.19–3.91)
Comorbidity
No	274	52656	5.20	93	7007	13.27	2.55(2.27–2.86)	3.50(2.76–4.43)
Yes	401	13505	29.69	494	6330	78.04	2.63(2.33–2.97)	3.67(3.21–4.20)
COPD
No	549	64434	8.52	326	11530	28.27	3.32(3.05–3.61)	3.27(2.81–3.81)
Yes	126	1728	72.93	261	1806	144.51	1.98(1.56–2.51)	2.31(1.81–2.94)
Diabetes
No	440	57077	7.71	416	11181	37.20	4.83(4.43–5.26)	3.50(2.99–4.09)
Yes	235	9085	25.87	171	2155	79.35	3.07(2.59–3.63)	2.33(1.85–2.93)

PY, person-years; Rate^#, incidence rate, per 1,000 person-years; IRR^*, incidence rate ratio; CI, confidence interval; Adjusted HR^†: multivariable analysis included age, sex, income, occupation, and comorbidities.; all p<0.001.