Percentage of people aged 60 or over in England as the lower super output area (LSOA) level, 2004 (left) and 2015 (right)*†. *The mean percentage of people aged 60 or over (across all LSOAs) rose from 21.1% in 2004 to 23.9% in 2015. †The dark lines indicate county boundaries within each region. Percentage of people aged 60 or over in England as the lower super output area (LSOA) level, 2004 (left) and 2015 (right)*†. *The mean percentage of people aged 60 or over (across all LSOAs) rose from 21.1% in 2004 to 23.9% in 2015. †The dark lines indicate county boundaries within each region. Evangelos Kontopantelis et al. J Epidemiol Community Health doi:10.1136/jech-2017-209895 ©2018 by BMJ Publishing Group Ltd