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Table 1 Descriptive statistics and significance levels of the variables

From: Risk factors for adolescents’ mental health during the COVID-19 pandemic: a comparison between Wuhan and other urban areas in China

  Without anxiety symptoms (N = 5681) (n%) With anxiety symptoms (N = 2091) (n%) P value
 Grade
  Middle School (n = 5107) 3936 (69.3%) 1171 (56%) <.001
  High School (n = 2665) 1745 (30.7%) 920 (44%)  
 Location
  Beijing&Hangzhou (n = 4922) 3652 (64.3%) 1270 (60.7%) 0.004
  Wuhan (n = 2850) 2029 (35.7%) 821 (39.3%)  
 Gender
  Male (n = 3713) 2823 (49.7%) 890 (42.6%) <.001
  Female (n = 4059) 2858 (50.3%) 1201 (57.4%)  
 Have Siblings
  No (n = 2447) 1716 (30.2%) 731 (35.0%) <.001
  Yes (n = 5325) 3965 (69.8%) 1360 (65.0%)  
 Relatives COVID work
  No (n = 6943) 5079 (89.4%) 1864 (89.1%) .743
  Yes (n = 829) 602 (10.6%) 227 (10.9%)  
 Relatives Infected
  No (n = 7399) 5463 (96.2%) 1936 (92.6%) <.001
  Yes (n = 373) 218 (3.8%) 155 (7.4%)  
 Parents Quarantined
  No (n = 7545) 5527 (97.3%) 2018 (96.5%) .070
  Yes (n = 227) 154 (2.7%) 73 (3.5%)  
 Study Online
  No (n = 1577) 1213 (21.4%) 364 (17.4%) <.001
  Yes (n = 6195) 4468 (78.6%) 1727 (82.6%)  
  Without depressive symptoms (N = 4438) (n%) With depressive symptoms (N = 3334) (n%) P value
 Grade
  Middle School (n = 5107) 3178 (71.6%) 1929 (57.9%) <.001
  High School (n = 2665) 1260 (28.4%) 1405 (42.1%)  
 Location
  Beijing&Hangzhou (n = 4922) 2833 (63.8%) 2089 (62.7%) .286
  Wuhan (n = 285) 1605 (36.2%) 1245 (37.3%)  
 Gender
  Male (n = 3713) 2278 (51.3%) 1435 (43%) <.001
  Female (n = 4059) 2160 (48.7%) 1899 (57%)  
 Have Siblings
  No (n = 2447) 1316 (29.7%) 1131 (33.9%) <.001
  Yes (n = 5325) 3122 (70.3%) 2203 (66.1%)  
 Relatives COVID work
  No (n = 6943) 3983 (89.7%) 2960 (88.8%) .172
  Yes (n = 829) 455 (10.3%) 374 (11.2%)  
 Relatives Infected
  No (n = 7399) 4275 (96.3%) 3124 (93.7%) <.001
  Yes (n = 373) 163 (3.7%) 210 (6.3%)  
 Parents Quarantined
  No (n = 7545) 4315 (97.2%) 3230 (96.9%) .367
  Yes (n = 227) 123 (2.8%) 104 (3.1%)  
 Study Online
  No (n = 1577) 979 (22.1%) 598 (17.9%) <.001
  Yes (n = 6195) 3459 (77.9%) 2736 (82.1%)  
  1. The cut-off score in this study for with or without anxiety/depressive symptoms is 5
  2. p value: Chi-square test for all these categorical variables