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Table 1 Demographic Characteristics of the Population

From: Persistent Allergic Rhinitis and the XPERT Study

  Placebo (N= 273) Levocetirizine (5 mg) (N= 278) Total* (N= 551)
Age at randomization, years    
   Mean (SD) 30.8 (8.8) 29.8 (8.9) 30.3 (8.9)
   Median 29.0 28.0 28.2
   Minimum-maximum 18.1-70.3 18.0-66.2 18.0-70.3
Duration of PER before randomization, years, mean (SD) 12.8 (8.2) 11.9 (7.8) 12.3 (8.0)
Sex, female 158 (57.9%) 152 (54.7%) 310 (56.3%)
Working status    
   Working 196 (72%) 186 (67%) 382 (69%)
   Nonworking 77 (28%) 92 (33%) 169 (31%)
  1. *ITT population.