There was no significant difference in caregiver strain between hospital-at-home and usual hospital care at both time points ( mean difference at T +4 days 0.47 95 % CI -0.96 to 1.91 , p = 0.514 ; mean difference at T +90 days 0.36 95 % CI -1.85 to 1.35 , p = 0.634 ) .