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. Author manuscript; available in PMC: 2015 Jun 24.
Published in final edited form as: Child Dev. 2012 Sep-Oct;83(5):1623–1639. doi: 10.1111/j.1467-8624.2012.01798.x

Table 3.

Proportion or Mean of Covariates in Trajectory Classes: Add Health and AHAA

Academic Achievement School Engagement Depression

Covariate Total A1 A2 A3 A4 E1 E2 E3 E4 D1 D2 D3 D4
1.5 generation 0.067 0.062 0.074 0.073 0.055 0.066 0.088 0.205 0.047 0.067 0.073 0.028 0.071
2nd generation 0.123 0.136 0.114 0.098 0.117 0.121 0.186 0.142 0.101 0.114 0.161 0.166 0.123
Black 0.197 0.152 0.223 0.374 0.226 0.187 0.262 0.295 0.224 0.186 0.242 0.158 0.235
Hispanic 0.150 0.102 0.181 0.198 0.212 0.138 0.226 0.295 0.181 0.141 0.179 0.194 0.172
Asian 0.071 0.099 0.055 0.031 0.035 0.074 0.091 0.097 0.033 0.068 0.086 0.097 0.062
Female 0.529 0.569 0.513 0.508 0.421 0.544 0.385 0.568 0.490 0.480 0.677 0.798 0.643
Age at 9th grade 14.396 14.279 14.421 14.511 14.815 14.343 14.433 14.267 14.783 14.386 14.428 14.405 14.426
Parent education 14.002 14.837 13.554 13.034 12.521 14.242 13.175 13.102 12.813 14.107 13.675 13.717 13.706
2-parent family 0.573 0.677 0.517 0.391 0.412 0.610 0.465 0.358 0.389 0.595 0.530 0.417 0.483
Public school 0.927 0.884 0.953 0.980 0.985 0.920 0.961 0.977 0.949 0.921 0.946 0.951 0.933
Attendance rate 0.920 0.926 0.916 0.908 0.914 0.922 0.904 0.908 0.913 0.921 0.916 0.917 0.918