Table 3.

COPD-incidences by year of observation and income in men and women: Hazard ratios (HR), standard errors and confidence intervals.

Year	Men			Women
	Hazard ratio	p	95% CI	Hazard ratio	p	95% CI
2008	1	–	–	1	–	–
2009	0.9	< 0.001	0.86–0.94	0.9	< 0.001	0.86–0.94
2010	1.05	0.04	1.00–1.10	1.03	0.28	0.98–1.08
2011	0.87	< 0.001	0.83–0.90	0.9	< 0.001	0.86–0.93
2012	0.84	< 0.001	0.81–0.88	0.83	< 0.001	0.79–0.86
2013	0.9	< 0.001	0.86–0.94	0.9	< 0.001	0.86–0.95
2014	0.82	< 0.001	0.78–0.85	0.81	< 0.001	0.78–0.85
2015	0.82	< 0.001	0.77–0.85	0.81	< 0.001	0.78–0.86
2016	0.72	< 0.001	0.69–0.76	0.7	< 0.001	0.67–0.74
2017	0.64	< 0.001	0.61–0.67	0.64	< 0.001	0.61–0.68
2018	0.62	< 0.001	0.59–0.65	0.59	< 0.001	0.56–0.62
2019	0.58	< 0.001	0.55–0.60	0.53	< 0.001	0.51–0.56
Income < 40%	1	–	–	1	–	–
level 40–80%	0.73	< 0.001	0.72–0.74	0.93	< 0.001	0.92–0.95
> 80%	0.67	< 0.001	0.66–0.68	0.84	< 0.001	0.82–0.86
Missing	0.78	< 0.001	0.76–0.79	0.85	< 0.001	0.84–0.87
Age (months)	1.002	< 0.001	1.0019–1.0020	1.0011	< 0.001	1.0010–1.0011