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. 2021 Aug 25;117(3):772–783. doi: 10.1111/add.15656

TABLE 1.

Sample characteristics by survey year and month.

n Comparator year (2018/19) Pandemic year (2019/20)
August 2018–February 2019 April–July 2019 August 2019–February 2020 (before lockdown) April–July 2020 (during lockdown)
11 836 6593 11 897 6655
Age, years, % (n)
18–24 12.9 (1526) 12.4 (817) 12.7 (1509) 10.9 (726)
25–34 17.1 (2027) 17.2 (1133) 17.1 (2035) 17.3 (1148)
35–44 15.8 (1874) 16.0 (1055) 15.8 (1874) 16.1 (1073)
45–54 17.4 (2054) 17.2 (1134) 17.1 (2038) 17.2 (1142)
55–64 14.4 (1701) 14.6 (964) 14.6 (1739) 15.2 (1013)
≥ 65 22.4 (2654) 22.6 (1489) 22.7 (2702) 23.3 (1552)
Sex, % (n)
Male 49.0 (5798) 49.3 (3250) 49.2 (5856) 49.3 (3279)
Female 51.0 (6038) 50.7 (3343) 50.8 (6040) 50.7 (3376)
Social grade, % (n)
ABC1 55.9 (6618) 55.6 (3664) 55.5 (6602) 53.4 (3555)
C2DE 44.1 (5218) 44.4 (2929) 44.5 (5295) 44.3 (2949)
Missing 0 (0) 0 (0) 0 (0) 2.3 (151)
Region in England, % (n)
London 15.6 (1847) 15.7 (1036) 15.5 (1842) 15.4 (1023)
South 26.4 (3122) 26.3 (1731) 26.4 (3146) 26.6 (1769)
Central 30.3 (3588) 30.1 (1983) 30.1 (3575) 30.4 (2022)
North 27.7 (3280) 28.0 (1843) 28.0 (3333) 27.7 (1841)

All data are weighted to match the adult population in England on age, social grade, region, tenure, ethnicity and working status within sex. In some cases, subgroup numbers do not sum to the total number due to rounding.