GAD1 and Anxiety: To determine whether group mean values in GAD scores significantly differed between clusters at baseline, t-tests (alpha adjusted to 0.017 for 3 between-groups comparisons) comparing GAD scores at baseline between pairs of cluster membership groups were conducted and revealed that cluster1 was higher in baseline anxiety compared to clusters 2 and 3 (ps < 0.01), while clusters 2 and 3 were not significantly different from each other when adjusting for multiple comparisons (p = 0.044).