Table 5.

Hospital admissions due to a main diagnosis of COPD by year of observation and income level in men and women: Hazard ratios, standard errors and confidence intervals.

Year	Men			Women
	Hazard ratio	p	95% CI	Hazard ratio	p	95% CI
2008	1	–	–	1	–	–
2009	0.97	0.67	0.84–1.12	0.95	0.6	0.80–1.14
2010	0.87	0.04	0.74–1.00	0.89	0.23	0.74–1.07
2011	0.76	0.06	0.67–0.85	0.88	0.1	0.76–1.03
2012	0.75	< 0.001	0.66–0.86	0.76	0.001	0.64–0.89
2013	0.78	< 0.001	0.68–0.90	0.78	0.001	0.66–0.92
2014	0.64	< 0.001	0.56–0.73	0.71	< 0.001	0.60–0.83
2015	0.57	< 0.001	0.49–0.65	0.76	0.001	0.64–0.90
2016	0.58	< 0.001	0.50–0.67	0.59	< 0.001	0.49–0.70
2017	0.48	< 0.001	0.41–0.56	0.66	< 0.001	0.55–0.79
2018	0.48	< 0.001	0.41–0.56	0.5	< 0.001	0.41–0.60
2019	0.47	< 0.001	0.41–0.55	0.53	< 0.001	0.44–0.64
Income < 40%	1	–	–	1	–	–
level 40–80%	0.62	< 0.001	0.60–0.64	0.87	< 0.001	0.84–0.90
> 80%	0.24	< 0.001	0.23–0.26	0.53	< 0.001	0.49–0.58
Missing	0.52	< 0.001	0.50–0.55	0.74	< 0.001	0.70–0.78
Age (months)	1.005	< 0.001	1.0050–1.0051	1.0037	< 0.001	1.0037–1.0039