Table 5.
Simple effect analysis of the interaction between sex and IA on psychological problems among adolescents.
| Variables | df | Mean difference (95%CI) | F | p |
|---|---|---|---|---|
| Depression | ||||
| IA WITHIN Boys | 1 | 5.619a (5.458, 5.779) | 4700.116 | <0.001 |
| IA WITHIN Girls | 1 | 7.560a (7.392, 7.727) | 7853.287 | <0.001 |
| Sex WITHIN NIU | 1 | 0.290b (0.197, 0.384) | 36.959 | <0.001 |
| Sex WITHIN PIU | 1 | 2.231b (2.019, 2.444) | 425.186 | <0.001 |
| Anxiety | ||||
| IA WITHIN Boys | 1 | 4.144a (3.996, 4.293) | 2955.765 | <0.001 |
| IA WITHIN Girls | 1 | 5.886a (5.731, 6.042) | 5504.876 | <0.001 |
| Sex WITHIN NIU | 1 | 0.511b (0.423, 0.598) | 132.005 | <0.001 |
| Sex WITHIN PIU | 1 | 2.253b (2.056, 2.450) | 501.105 | <0.001 |
| Stress | ||||
| IA WITHIN Boys | 1 | 5.741a (5.574, 5.907) | 4573.109 | <0.001 |
| IA WITHIN Girls | 1 | 7.652a (7.478, 7.825) | 7498.755 | <0.001 |
| Sex WITHIN NIU | 1 | 0.954b (0.857, 1.051) | 371.290 | <0.001 |
| Sex WITHIN PIU | 1 | 2.864b (2.645, 3.084) | 653.043 | <0.001 |
aMean difference, score of psychological problems in PIU group – score of psychological problems in NIU group.
bMean difference, girls psychological problem score – boys psychological problem score.