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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: Psychol Addict Behav. 2018 May;32(3):309–319. doi: 10.1037/adb0000365

Table 3.

Results of equality tests of means for outcome variables assessed at wave 7 across BMI trajectory classes using the 3-step procedure

Outcomes variables1
Latent Trajectory Class Number of drinking problems Number of illicit drug problems Nicotine dependence
M SD M SD M SD
“Normal” .29 .44 .18 .12 .14 .09
“Overweight” −.11 .99 −.21 .01 −.56 .12
“Obese” −2.74 .65 −.31 .05 .51 .38
Equality tests of means
χ2 χ2 χ2
Overall test 16.78*** 13.07*** 21.71***
“Normal” vs. “Overweight” n.s. normal > overweight, 10.79** normal > overweight, 18.52***
“Normal” vs. “Obese” normal > obese, 15.53*** normal > obese, 13.07*** n.s.
“Overweight” vs. “Obese” overweight > obese, 4.41* n.s. obese > overweight, 7.01*

Note.

*

p < .05,

**

p < .01,

***

p < .001;

1

Reported means are based on the residuals from regression models that account for covariates. Results of equality tests of means for outcome variables when a 4-class solution is chosen are presented in Table S1.