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Table 1 Descriptive and univariate logistic regression analysis of background characteristics on suicidal ideation (≥once)

From: Serial multiple mediation of the association between internet gaming disorder and suicidal ideation by insomnia and depression in adolescents in Shanghai, China

Characteristics Number of participants Suicidal Ideation(≥once)
n(row) ORu (95% CI)
Sex (%)
 Male 602 (56.5%) 121 (20.1%) Ref
 Female 464 (43.5%) 169 (36.4%) 2.277 (1.730,2.997) ***
Age (years), median (IQR) 13.0 (12.0,13.0)   
  < = 12 years (%) 342 (32.1%) 107 (31.3%) Ref
  > = 13 years (%) 724 (67.9%) 183 (25.3%) 0.743 (0.560,0.986) *
Mother’s education level (%)
 Primary school or below 31 (2.9%) 13 (41.9%) Ref
 Junior high school 124 (11.7%) 45 (36.3%) 0.789 (0.354,1.758)
 Senior high school 219 (20.7%) 59 (26.9%) 0.511 (0.236,1.106)
 University or above 664 (62.6%) 162 (24.4%) 0.447 (0.214,0.932) *
 Unknown 22 (2.1%) 10 (45.5%) 1.154 (0.384,3.471)
Father’s education level (%)
 Primary school or below 25 (2.4%) 10 (40.0%) Ref
 Junior high school 112 (9.6%) 39 (38.2%) 0.929 (0.380,2.271)
 Senior high school 222 (20.9%) 68 (30.6%) 0.662 (0.283,1.549)
 University or above 689 (64.9%) 162 (23.5%) 0.461 (0.203,1.046)
 Unknown 23 (2.2%) 10 (43.5%) 1.154 (0.366,3.640)
Perceived family financial condition (%)
 Very good/good 655 (61.5%) 144 (22.0%) Ref
 Medium 318 (29.9%) 106 (33.3%) 1.774 (1.318,2.389) ***
 Very poor/poor 26 (2.4%) 16 (61.5%) 5.678 (2.522,12.781) ***
 Unknown 66 (6.2%) 24 (36.4%) 2.028 (1.188,3.461) **
Residence identity (%)
 Local 881 (82.8%) 247 (28.0%) Ref
 Migrant 183 (17.2%) 42 (23.0%) 0.765 (0.526,1.112)
Family type (%)
 Non single-parent family 941 (88.6%) 249 (26.5%) Ref
 Single-parent family 121 (11.4%) 41 (33.9%) 1.424 (0.952,2.132)
Living arrangements (%)
 Live with parents 906 (85.2%) 237 (26.2%) Ref
 Only live with mother 77 (7.2%) 25 (32.5%) 1.357 (0.824,2.236)
 Only live with father 37 (3.5%) 13 (35.1%) 1.529 (0.766,3.052)
 Live with neither 43 (4.0%) 14 (32.6%) 1.363 (0.708,2.623)
Suicidal ideation (%)
 Never think about it 776 (72.8%)
 Think it more than once 290 (27.2%)
  1. IQR Interquartile range, ORu Univariate odds ratio, CI Confidence interval
  2. *p < 0.05, **p < 0.01, p < 0.001