Table 4 COPD-incidences by year of observation and income in women and men.

From: Decreasing COPD-related incidences and hospital admissions in a German health insurance population

Year 2008	Men			Women
	HR	p	95% CI	HR	p	95% CI
	Ref	–	–	1	–	–
Income level < 40% of the national average
2009	0.86	0.001	0.79–0.94	0.85	< 0.001	0.78–0.92
2010	1.05	0.32	0.96–1.14	0.95	0.22	0.88–1.03
2011	0.86	< 0.001	0.80–0.94	0.82	< 0.001	0.76–0.88
2012	0.77	< 0.001	0.71–0.84	0.76	< 0.001	0.71–0.82
2013	0.88	0.001	0.81–0.96	0.84	< 0.001	0.78–0.91
2014	0.83	< 0.001	0.77–0.92	0.75	< 0.001	0.69–0.81
2015	0.83	< 0.001	0.76–0.91	0.75	< 0.001	0.69–0.81
2016	0.72	< 0.001	0.66–0.78	0.66	< 0.001	0.61–0.72
2017	0.65	< 0.001	0.59–0.71	0.61	< 0.001	0.56–0.66
2018	0.64	< 0.001	0.59–0.71	0.56	< 0.001	0.51–0.60
2019	0.59	< 0.001	0.54–0.65	0.5	< 0.001	0.46–0.54
Age (months)	1.021	< 0.001	1.0206–1.0220	1.0083	< 0.001	1.0078–1.0088
Income level 40–80% of the national average
Year 2008	1	–	–	1	–	–
2009	0.89	0.02	0.81–0.98	0.82	< 0.001	0.74–0.92
2010	1.02	0.75	0.92–1.11	1.19	0.002	1.07–1.32
2011	0.81	< 0.001	0.75–0.88	0.88	0.02	0.81–0.98
2012	0.83	< 0.001	0.76–0.91	0.88	0.02	0.80–0.98
2013	0.84	< 0.001	0.76–0.92	0.9	0.05	0.81–0.99
2014	0.77	< 0.001	0.70–0.84	0.92	0.1	0.83–1.02
2015	0.75	< 0.001	0.69–0.83	0.75	0.03	0.81–0.99
2016	0.67	< 0.001	0.61–0.73	0.89	< 0.001	0.71–0.88
2017	0.62	< 0.001	0.56–0.68	0.82	< 0.001	0.74–0.91
2018	0.58	< 0.001	0.54–0.64	0.7	< 0.001	0.63–0.78
2019	0.54	< 0.001	0.49–0.59	0.62	< 0.001	0.56–0.69
Age (months)	1.0206	< 0.001	1.0200–1.0212	1.0139	< 0.001	1.0134–1.0145
Income level > 80% of the national average
2009	0.97	0.55	0.87–1.08	0.95	0.58	0.79–1.14
2010	1.18	0.01	1.01–1.32	1	0.99	0.83–1.20
2011	0.94	0.16	0.86–1.03	0.98	0.78	0.82–1.16
2012	0.92	0.08	0.83–1.01	0.87	0.11	0.73–1.03
2013	1.08	0.13	0.98–1.20	1	0.99	0.84–1.20
2014	0.91	0.06	0.83–1.01	0.75	0.01	0.62–0.90
2015	0.99	0.91	0.90–1.10	0.87	0.13	0.73–1.04
2016	0.88	0.02	0.80–0.98	0.78	0.001	0.66–0.94
2017	0.81	< 0.001	0.73–0.90	0.69	< 0.001	0.58–0.83
2018	0.75	< 0.001	0.68–0.82	0.61	< 0.001	0.52–0.72
2019	0.72	< 0.001	0.65–0.79	0.59	< 0.001	0.51–0.69
Age (months)	1.0298	< 0.001	1.0289–1.0307	1.0202	< 0.001	1.0190–1.0214
Income data missing
2009	0.93	0.12	0.85–1.02	1	0.91	0.93–1.09
2010	1.03	0.42	0.95–1.13	1.02	0.56	0.95–1.11
2011	0.89	0.01	0.82–0.96	0.96	0.28	0.90–1.03
2012	0.89	0.01	0.82–0.97	0.84	< 0.001	0.78–0.90
2013	0.89	0.01	0.81–0.96	0.95	0.22	0.88–1.03
2014	0.8	< 0.001	0.73–0.87	0.82	< 0.001	0.76–0.89
2015	0.76	< 0.001	0.69–0.83	0.83	< 0.001	0.76–0.89
2016	0.68	< 0.001	0.62–0.74	0.7	< 0.001	0.62–0.73
2017	0.55	< 0.001	0.50–0.60	0.55	< 0.001	0.50–0.60
2018	0.54	< 0.001	0.49–0.60	0.53	< 0.001	0.49–0.58
2019	0.49	< 0.001	0.45–0.54	0.48	< 0.001	0.44–0.52
Age (months)	1.032	< 0.001	1.0312–1.0328	1.021	< 0.001	1.0202–1.0217

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Table 4 COPD-incidences by year of observation and income in women and men.

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