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Table 1 Baseline characteristics of recruited participants in various years

From: Prevalence and distribution patterns of allergens among children with asthma and asthma-like symptoms in Shanghai, China

YearNBoy/girlAgeFatherMotherF-MNone     
2010467281/1864.00 (3.00,5.50)12810922208     
2011341200/1414.00 (3.00,5.50)1057333130     
2012293169/1244.50 (3.50,6.50)91802993     
2013178103/754.50 (3.63,6.00)64351762     
2014331209/1224.50 (3.50,6.00)110952997     
2015279163/1164.50 (3.50,6.50)107662086     
2016432260/1725.00 (4.00,6.50)12212856126     
2017551298/2535.00 (3.50,6.25)17012957195     
2018607339/2685.00 (4.00,7.00)17716486180     
Total34792022/14574.50 (3.50,6.00)10748793491177     
Year (N)Total (N)DF (N)HDM (N)Cat fur (N)Dog fur (N)RP (N)WP (N)Shrimp (N)Crab (N)Egg (N)Milk (N)Cashew (N)
20104672502411681638657634610528
2011341176176143128804021208310
20122931631621161121115617147417
201317887896764764278545
20143311901941381291696739411267
201527912712986871236118181365
20164322152231391371898515201437
2017551257255125125217941321211011
20186073093071761722611181713121111
Total34791774177611581117131262021020110252101
  1. Age: median (Q1, Q3), Family allergy history (Father: father allergy only, Mother: mother allergy only, F-M: both of father and mother allergy, none: neither of father nor mother allergy)
  2. DF dermatophagoides farinae, HDM house dust mite, RP ragweed, WP willow