Table 1. Cohort characteristics at baseline
Characteristicn%a
Age, yearsMedian (IQR)5236–66
Mean (SD)5219
Age group, years18–39210 04729.9
40–59241 83134.4
60–79194 16827.6
≥8056 2198.0
SexMale328 71246.8
Female373 55353.2
Socioeconomic status (IMD quintile)1 (most deprived)102 79614.6
2126 06918.0
3132 26218.8
4146 62220.9
5 (least deprived)186 28426.5
Missing82321.2
Ethnic groupBritish and Mixed British (Irish, Other, or White)427 01960.8
Mixed (White and Asian, White and Black African, White and Black Caribbean, or Other Mixed)38630.6
Indian, Bangladeshi, Pakistani, or Other Asian13 1801.9
African, Caribbean, or Other Black52510.7
Other72361.0
Missing245 71635.0
Long-term condition diagnosed at the point of baselineChronic kidney disease36 0595.1
CVD (ischaemic heart disease, cerebrovascular disease, and peripheral cardiovascular disease)52 9857.5
Heart failure12 7991.8
Diabetes62 7678.9
Hypertension150 45821.4
Osteoarthritis95 29413.6
Rheumatoid arthritis67231.0
Prescribed at baselineNSAID19 3642.8
  • aUnless otherwise stated. CVD = cardiovascular disease. CVD = cardiovascular disease. IQR = interquartile range. IMD = Index of Multiple Deprivation. NSAID = non-steroidal anti-inflammatory drug. SD = standard deviation.