Table 3.
Results from negative binomial regression models predicting boys’ compulsive SEIM use at T1 (cross-sectionally; left column) and T2 (longitudinally; right column)
| Cross-sectional models (N = 331) | Longitudinal models (N = 251) | |||
|---|---|---|---|---|
| B (SE) | RR (95 % CI) | B (SE) | RR (95 % CI) | |
| Model 1: Psychological well-being T 1 | ||||
| Compulsive SEIM use Ta1 | – | – | 0.18 (.03)*** | 1.19 (1.13, 1.26) |
| Age | 0.00 (.10) | 1.00 (0.81, 1.20) | −0.11 (.06) | 0.90 (0.79, 1.01) |
| Depression | −0.05 (.18) | 0.95 (0.61, 1.30) | 0.53 (.21)* | 1.70 (1.00, 2.40) |
| Global self-esteem | −0.59 (.16)*** | 0.55 (0.38, 0.73) | 0.13 (.15) | 1.14 (0.80, 1.48) |
| Model 2: Sexual interests/behaviors T 1 | ||||
| Compulsive SEIM use Ta1 | – | – | 0.15 (.03)*** | 1.16 (1.10, 1.22) |
| Age | −0.10 (.09) | 0.99 (0.81, 1.17) | −0.08 (.07) | 0.92 (0.79, 1.05) |
| Excessive sexual interest | 0.65 (.13)*** | 1.92 (1.45, 2.39) | 0.29 (.12)* | 1.34 (1.04, 1.64) |
| Experience with sexual behavior | 0.03 (.07) | 0.97 (0.84, 1.11) | −0.04 (.09) | 0.96 (0.78, 1.13) |
| Model 3: Impulsive-psychopathic personality T 1 | ||||
| Compulsive SEIM use Ta1 | – | – | 0.17 (.03)*** | 1.19 (1.12, 1.26) |
| Age | −0.04 (.08) | 0.96 (0.81, 1.12) | −0.08 (.07) | 0.92 (0.80, 1.04) |
| Impulsivity | 0.14 (.13) | 1.15 (0.87, 1.43) | 0.08 (.11) | 1.08 (0.84, 1.33) |
| Affective psychopathy | 0.20 (.19) | 1.23 (0.78, 1.68) | 0.29 (.19) | 1.33 (0.84, 1.83) |
| Interpersonal psychopathy | 0.17 (.16) | 1.19 (0.81, 1.57) | −0.19 (.15) | 0.83 (0.59, 1.06) |
| Model 4: Significant predictors T 1 | ||||
| Compulsive SEIM use Ta1 | – | – | 0.15 (.03)*** | 1.16 (1.10, 1.22) |
| Age | −0.00 (.08) | 1.00 (0.85, 1.15) | −0.10 (.06) | 0.90 (0.79, 1.01) |
| Depressionb | – | – | 0.45 (.18)* | 1.57 (1.02, 2.12) |
| Global self-esteemc | −0.44 (.17)** | 0.65 (0.43, 0.86) | – | – |
| Excessive sexual interest | 0.60 (.13)*** | 1.83 (1.38, 2.28) | 0.26 (.14) | 1.30 (0.95, 1.65) |
SEIM sexually explicit Internet material, RR rate ratio
* p < .05; ** p < .01; *** p < .001 (two-tailed)
aVariable only included in longitudinal analyses
bVariable only significant in longitudinal analyses; therefore not included in final cross-sectional model
cVariable only significant in cross-sectional analyses; therefore not included in final longitudinal model