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Table 3 The associations of factors of family context with excessive spending of time on computer use among adolescents

From: How parents can affect excessive spending of time on screen-based activities

    Work with computer 2 hours and more
    Model 1 Model 2 Model3
   N (%) OR (95% CI)   OR (95% CI)
Gender Boys 289 (65.4)    1.62 (1.18-2.22)**
Girls 216 (53.7)    1
Age (grade) 15-years old (9th grade) 341 (77.5)    3.91 (2.82-5.43)***
11-years old (5th grade) 165 (40.6)    1
Family completeness Incomplete 45 (66.2) 1.16 (0.66-2.05)   
Mixed 58 (58.6) 0.75 (0.47-1.21)   
Intact 392 (60.0) 1   
Computer in bedroom Yes 411 (67.2) 2.42 (1.73-3.39)***   2.25 (1.59-3.20)***
No 94 (40.7) 1 a 1
Parents apply rules about spending time with a computer Rarely-never 310 (69.8) 1.65 (1.19-2.28)*   1.50 (1.07-2.08)*
Every day-almost every day 175 (49.4) 1 b, c 1
Parents apply rules about content of computer work Rarely-never 355 (67.2) 1.27 (0.90-1.80)   
Every day-almost every day 124 (47.5) 1 d  
Activities shared with parents Lower score = more frequently shared activities   0.97 (0.82-1.15) e  
  1. athe interaction effect of the computer in the bedroom and age on the chance of excessive computer use was not significant.
  2. bthe interaction effect of parental rules about time spent with computer work and age on chance of excessive computer use was not significant.
  3. cthe interaction effect of parental rules about time spent with computer work and gender on chance of excessive computer use was not significant.
  4. dthe interaction effect of parental rules about content of computer work and age on chance of excessive computer use was not significant.
  5. ethe interaction effect of activities shared with parents and age on chance of excessive computer use was not significant.
  6. Model 1 Each variable separated and adjusted to age and gender.
  7. Model 2 Model 1 enriched by interaction. Each interaction entered separately.
  8. Model 3 All variables included in one step.
  9. **p < 0.05 **p < 0.01 ***p < 0.001.