“…Five studies reported caregivers' OOPCs, which most frequently included the cost of care supplies, medication, formal help (e.g. professional care or paid domestic help) and travel expenses, although each study included different OOPCs (Table ; Guerriere et al, ; Hanly, Céilleachair, Skally, O'Leary, Kapur, et al, ; Lauzier et al, ; Rowland, Hanratty, Pilling, van den Berg, & Grande, ; Van Houtven et al, ). Two studies found that OOPCs make up 7%–13% of total caregiver costs in studies that included OOPCs, care time and work time costs, depending on the phase of disease (Hanly, Céilleachair, Skally, O'Leary, Kapur, et al, ; Van Houtven et al, ).…”