Table 4.

Comparison of linear models with correlated errors to test for differences between waitlist (WL) and Web-based enhanced relapse prevention intervention (ERPonline) on outcome and process measures at 12-, 24-, and 48-week follow-ups. Unadjusted model showing estimates of difference between beta estimates at each time point.

Variable	Model 1—Unadjusted analysis
	12-week follow-up estimate	95% CI (P value)	24-week follow-up estimate	95% CI (P value)	36-week follow-up estimate	95% CI (P value)	48-week follow-up estimate	95% CI (P value)
Early warning signs monitoring frequency—depression			0.73	−1.86 to 0.40 (.20)			−1.39	−2.61 to −.163 (.03)
Early warning signs monitoring frequency—hypomania			−1.72	−2.98 to −.47 (.01)			−1.61	−2.92 to −.30 (.02)
Brief Illness Perception Questionnairea —total			10.70	0.90 to 20.5 (.03)			13.18	2.44 to 23.93 (.02)
Medication Adherence Rating Scale			−0.102	−1.07 to 0.87 (.84)			−0.327	−1.34 to 0.685 (.53)
Personal and Social Performance Scale	−2.91	−9.19 to 3.37 (.36)	−0.198	−6.77 to 6.38 (.95)	0.77	−5.87 to 7.41 (.82)	−2.87	−9.27 to 3.52 (.38)
Multidimensional Scale of Independent Functioning—global (frequencies for scores categories 1, 2, 3, 4, 5, 6)	0.169	−0.867 to 1.20 (.75)	.029	−0.959 to 1.02 (.95)	−0.074	−1.15 to 1.00 (.89)	.281	−0.785 to 1.35 (.61)
Work and Social Adjustment Scale			−1.61	−5.67 to 1.46 (.30)			−0.53	−3.90 to 2.83 (.76)
Quality of Life in Bipolar Disorder			6.67	−5.73 to 19.1 (.29)			3.99	−9.72 to 17.7 (.57)
Bipolar Recovery Questionnaire			−52.3	−195 to 90.7 (.47)			−38.09	−208.58 to 132.41 (.66)

^aBrief Illness Perception Questionnaire total measures how negative a model the person has—so high score=more negative model.