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Table 1 The daily outpatient visits for eczema, age and gender distribution: in Guangdong Dermatology Hospital, 2013–2018

From: NO2 exposure increases eczema outpatient visits in Guangzhou, China: an indication for hospital management

  2013 2014 2015 2016 2017 2018 F/ χ2 P
Daily outpatient visits 75.261 ± 23.840 93.688 ± 31.839 131.406 ± 37.233 155.644 ± 43.374 180.638 ± 48.581 190.845 ± 48.430 478.389 <.001
Sex
Male 13,315 (9.0%) 17,361 (11.8%) 22,967 (15.6%) 27,441 (18.6%) 32,839 (22.2%) 33,709 (22.8%) 49.927 <.001
Female 12,349 (8.5%) 16,553 (11.4%) 23,025 (15.8%) 27,190 (18.7%) 32,551 (22.3%) 34,040 (23.4%)   
Age 41.530 ± 21.170 42.166 ± 21.059 42.948 ± 20.796 42.134 ± 20.732 41.772 ± 21.107 41.684 ± 20.946 26.794 <.001
  < 12 2179 (9.0%) 2769 (11.4%) 3509 (14.5%) 4388 (18.1%) 5754 (23.8%) 5587 (23.1%) 89.416 <.001
12–65 18,039 (8.8%) 23,806 (11.6%) 32,127 (15.6%) 38,347 (18.6%) 45,546 (22.1%) 47,942 (23.3%)   
  > 65 5446 (8.6%) 7340 (11.6%) 10,356 (16.3%) 11,896 (18.8%) 14,091 (22.2%) 14,221 (22.4%)