Table 1.

Characteristics of the cohort

CharacteristicsParticipants, n (%), N = 1 736 527
No poisoning events, N = 1 705 018At least one poisoning event, N= 31 509
Sex
  Male812 770 (48)12 345 (39)
  Female892 248 (52)19 164 (61)
Median age, years, (IQR) entering cohort16.3 (10.0–21.5)13.9 (10.0–18.5)
Median person-years (IQR) contributed2.8 (1.1–6.3)6.7 (3.2–10.2)
Index of Multiple Deprivation quintile
  1 (least deprived)231 391 (14)3021 (10)
  2362 948 (21)5834 (18)
  3340 261 (20)6867 (22)
  4392 703 (23)7826 (25)
  5 (most deprived)377 715 (22)7961 (25)
  • IQR = interquartile range.