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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: J Adolesc Health. 2015 Mar 3;56(6):599–605. doi: 10.1016/j.jadohealth.2015.01.006

Table 3.

Intercept, Slope, and Quadratic Term Means, Variances, and Correlations for Boys and Girls.

Boys
Girls
Mean (SE) Variance (SE) Mean (SE) Variance (SE) Correlations
1. 2. 3.
1. Intercept 18.02 (.07)** 1.26 (.14)** 17.65 (.08)** .64 (.09)** – −.42** .32**
2. Slope −8.02 (.34)** 19.03 (2.93)** −6.48 (.38)** 12.73 (2.17)** .04 – −.44**
3. Quadratic term 10.88 (.35)** 22.05 (3.22)** 9.59 (.40)** 21.50 (2.85)** .17* −.47** –

Note: Significant mean values indicate that the pattern of change indicated by the given parameter is significantly different from zero. Significant variances indicate significant inter-individual variability in the given parameter. Correlations above the diagonal are for boys, correlations below diagonal are for girls.

**

p < .01.

*

p < .05.