Evolution of the “fourth stage” of epidemiologic transition in people aged 80 years and over: population-based cohort study using electronic health records

Table 1 Proportion of CPRD population aged 80 years or older by five-year period and sex

Period	Total population		80+ years per thousand total population (95% CI)	Female population		80+ years per thousand total population (95% CI)	Male population		80+ years per thousand total population (95% CI)
Period	80+ years	All ages (millions)	80+ years per thousand total population (95% CI)	80+ years	All ages (millions)	80+ years per thousand total population (95% CI)	80+ years	All ages (millions)	80+ years per thousand total population (95% CI)
1990-1994	53,008	1.16	45.7 (45.3 to 46.1)	36,533	0.59	61.0 (61.2 to 62.5)	16,475	0.57	28.9 (28.5 to 29.4)
1995-1999	96,266	2.06	46.7 (46.4 to 47.0)	65,649	1.04	62.9 (62.4 to 63.4)	30,617	1.02	30.1 (29.8 to 30.4)
2000-2004	195,829	4.03	48.5 (48.3 to 48.8)	130,126	2.03	64.0 (63.7 to 64.4)	65,703	2.00	32.8 (32.6 to 33.1)
2005-2009	235,745	4.77	49.4 (49.2 to 49.6)	152,266	2.40	63.5 (63.2 to 63.8)	83.479	2.37	35.2 (35.0 to 35.4)
2010-2014	226,479	4.45	50.9 (50.7 to 51.1)	141,359	2.24	63.0 (62.7 to 63.3)	85,119	2.20	38.6 (38.4 to 38.9)

Figures are means of annual mid-year counts for each period, except where indicated
CI, confidence interval; CPRD, Clinical Practice Research Datalink

ISSN: 1478-7954