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| Characteristics | Current methylphenidate use | Diagnosed emotional disorder | Impairment in academic, social or family functioning | ||||||
|---|---|---|---|---|---|---|---|---|---|
| beta† | Standard deviation | P value | beta† | Standard deviation | P value | beta† | Standard deviation | P value | |
| Hyperactivity/Inattention Scale (continuous) | 0.30 | 0.02 | < 0.0001 | 0.31 | 0.02 | < 0.0001 | 0.29 | 0.01 | < 0.0001 |
| Male sex | 0.52 | 0.10 | < 0.0001 | ... | ... | ... | ... | ... | ... |
| Age (years) | 0.13 | 0.04 | 0.0046 | 0.26 | 0.05 | < 0.0001 | 0.16 | 0.03 | < 0.0001 |
| Low household income | ... | ... | ... | 0.32 | 0.09 | 0.0002 | 0.39 | 0.05 | < 0.0001 |
| † beta coefficient of parameter ... not applicable Notes: Multivariable regression models chosen by backwards selection. Model chosen using backwards selection with p < 0.01 to stay and p < 0.10 to go. Best model chosen using -2 Log Likelihood statistic and Hosmer/Lemeshow Goodness-of-Fit tests. Source: 1994/1995 National Longitudinal Survey of Children and Youth. |
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