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Table 1 Demographics and orthodontic information of the patients answered the questionnaires

From: Orthodontic emergencies and mental state of Chinese orthodontic patients during the COVID-19 pandemic

Characteristics N Percent (%)
Demographics
 Age group
  8–12 43 4.0
  12–18 305 28.3
  18–30 531 49.3
  30–45 184 17.1
  45–65 15 1.4
 Gender
  Male 292 27.1
  Female 786 72.9
 Profession
  Student 556 51.6
  Teacher 53 4.9
  Medical personnel 67 6.2
  Employee of enterprises and institutions 158 14.7
  Government staff 39 3.6
  Freelancer 69 6.4
  Others 136 12.6
 Education background
  Postgraduate 129 12.0
  Tertiary school 548 50.8
  Secondary school 321 29.8
  Primary school 80 7.4
Orthodontic
 Orthodontic appliances
  Fixed appliances 581 53.9
  Clear aligners 347 32.2
  Removable appliances 150 13.9
 Geographical relationship with the hospital or clinic
  In the same city 744 69.0
  In the same province (except the same city) 223 20.7
  In different provinces 111 10.3
 Dental office
  Orthodontic department in stomatological hospital 623 57.8
  Stomatology department in general hospital 133 12.3
  Chain dental clinic 103 9.6
  Individual dental clinic 219 20.3
Total 1078 100.0