TABLE 5.

Probit Probability Estimates for BPI >119 at Follow-up

Independent VariableWhite Non-HispanicAfrican AmericanHispanic
ME*P ValueCIME*P ValueCIME*P ValueCI
No. of times spanked in week preceding baseline0.044.003(0.015 to 0.066)0.023.251(−0.016 to 0.061)0.027.253(−0.021 to 0.084)
Square of no. of times spanked−0.005.022(−0.009 to −0.001)−0.002.390(−0.007 to 0.003)−0.006.234(−0.017 to 0.004)
Child is female0.011.569(−0.027 to 0.048)−0.018.505(−0.089 to 0.044)−0.050.146(−0.119 to 0.018)
Age of child−0.006.018(−0.010 to −0.001)−0.003.544(−0.011 to 0.006)−0.004.377(−0.012 to 0.005)
Age of mother−0.002.659(−0.011 to 0.007)0.000.984(−0.015 to 0.015)0.013§.096(−0.002 to 0.028)
Mother married−0.033.280(−0.100 to 0.033)−0.046.230(−0.120 to 0.028)0.035.353(−0.035 to 0.106)
Family income ÷ 10 000−0.012.169(−0.030 to 0.005)0.014.409(−0.009 to 0.062)−0.050.007(−0.085 to −0.016)
Mother completed >12 y of school−0.029.190(−0.073 to 0.014)−0.018.637(−0.093 to 0.056)−0.035.394(−0.112 to 0.041)
Mother reads to child every day−0.011.604(−0.059 to 0.026)−0.003.941(−0.072 to 0.066)0.019.613(−0.056 to 0.095)
Difficult temperament index0.002.201(−0.002 to 0.006)0.007.031(0.001 to 0.012)0.002.533(−0.004 to 0.009)
Positive mother-child interactions−0.003.885(−0.039 to 0.040)0.012.733(−0.055 to 0.079)0.016.647(−0.054 to 0.085)
Predicted probability at means0.0790.1410.105
  • * Represents the estimated change in proportion resulting from a 1-unit increase in an explanatory variable. For dichotomous indicators, ME estimate is for a change from 0 to 1.

  • P < .01.

  • P < .05.

  • § P < .10.