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Table 1 Demographic characteristics of the final sample

From: Predictors of inappropriate and excessive use of reliever medications in asthma: a 16-year population-based study

Variable Value
Total sample size 343,520
Total person years 2,623,065
Person years with no asthma resource use a 638,075 (24.3%)
Average follow up years (SD) 7.64 (5.3)
Inappropriate use of SABA 190,364 (7.3%)
Excessive use of SABAs 24,017 (0.9%)
Asthma related death 122 (< 0.1%)
  1. SD standard deviation
  2. aThese periods were removed from the main analysis but were investigated in a sensitivity analysis