This study compared the correlates of burden for spouse and adult child caregivers at two points in time and assessed whether correlates at T1 predicted burden at T2. The sample consisted of 878 caregivers to older adults throughout British Columbia who were prescribed cholinesterase inhibitors. Burden was measured six months after the older adult was prescribed the medication and one year later (n = 759). Findings suggest that adult children experience more burden than spouses at both T1 and T2 with adult children but not spouses decreasing their burden over time. Correlates of T1 burden explained significant amounts of variance, revealing differential correlates for the two groups and the importance of caregiver characteristics over patient characteristics. Burden at T2 is explained mostly by T2 factors, plus T1 burden, suggesting the importance of relatively immediate factors for direct effects on caregiver burden. Indirect effects operated through T1 burden.
