Hu Y, et al. - Researchers evaluated the connection between living arrangements and the use of hospital care (ie, having been in hospital for ≥ 8 days in a year) among middle-aged and older adults, and examined the extent to which individual features observed and unobserved explain this association. They analyzed longitudinal Finnish registry data for men and women aged 50–89 years for the period spanning 1987–2007. According to findings, men and women who lived alone had higher crude odds of heavy hospital care use vs those living only with their partner in the logistic regression models. For men and women in the youngest age category (50–59 years), these odds ratios were highest and decreased with age. Lower odds were found among adults between the ages of 50-59 who lived with their partner and children (minor or adult). But the odds for individuals aged 60–79 years who co-resided with their adult children were higher, irrespective of whether they lived with a partner. The link between living arrangements and higher use of hospital care at middle and older ages was mainly explained by socioeconomic disadvantage and unobserved time-invariant individual features.