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Table 1 Participant characteristics in the current study

From: The association between health literacy and psychosomatic symptoms of adolescents in China: a cross-sectional study

Items n (%) Physical symptoms Psychological symptoms
M P 25 P 75 χ2/Z P-value a M P 25 P 75 χ2/Z P-value a
Gender      −0.188 0.851     −2.625 0.009
 Male 10,990 (48.6) 1 0 3    2 0 9   
 Female 11,638 (51.4) 0 0 4    2 0 9   
Grade      −14.091 <  0.001     −10.042 <  0.001
 Junior school 11,993 (53.0) 0 0 3    2 0 8   
 Senior high school 10,635 (47.0) 1 0 4    3 0 10   
Registered residence      −1.000 0.317     −2.112 0.035
 Rural 10,882 (48.1) 0 0 4    2 0 9   
 Urban 11,746 (51.9) 0 0 3    2 0 9   
Boarding on school days      13.647 <  0.001     10.570 <  0.001
 Yes 11,320 (50.0) 1 0 4    3 0 10   
 No 11,308 (50.0) 0 0 3    1 0 8   
Household structure      −5.575 <  0.001     −4.860 <  0.001
 Only child 9720 (43.0) 1 0 4    2 0 10   
 More than one child 12,908 (57.0) 0 0 3    2 0 9   
Father’s educational level      −0.626 0.531     −2.298 0.022
  < High school degree 13,006 (57.5) 0 0 3    2 0 9   
  ≥ High school degree 9424 (41.6) 0 0 4    2 0 9   
 No father 198 (0.9)           
Mother’s educational level      −1.230 0.219     −2.623 0.009
  < High school degree 14,335 (63.4) 0 0 3    2 0 9   
  ≥ High school degree 8105 (35.8) 1 0 4    2 0 9   
 No mother 188 (0.8)           
Self-reported family economy      308.706 <  0.001     355.664 <  0.001
 Bad 3240 (14.3) 2 0 6    5 0 15   
 General 16,345 (72.2) 0 0 3    2 0 8   
 Good 3043 (13.4) 0 0 3    2 0 9   
Support from friends      257.148 <  0.001     444.541 <  0.001
 None 599 (2.6) 3 0 13    12 2 24   
 Few 14,535 (64.2) 1 0 4    2 0 10   
 Lot 7494 (33.1) 0 0 3    1 0 7   
  1. Statistical methods: Mann-Whitney test or Kruskal- Wallis H test. a is Bonferroni-adjusted P-value