What the evidence says
The only ownership-status comparison in this evidence set is Ontario long-term care data (Hsu 2016), and it points one direction: for-profit chain-owned homes provide less direct care than not-for-profit or municipal homes. After adjusting for resident case-mix, for-profit chain homes provided roughly 19–21 fewer minutes of direct care per resident per day (0.32–0.35 hours) than not-for-profit and municipal homes. In absolute terms, for-profit chain members had the lowest mean staffing level of any ownership category studied — 2.63 hours of direct care per case-mix-adjusted resident day, against 2.82 hours for not-for-profit chain homes, 2.95 for not-for-profit independent homes, and 2.98 for municipal homes.
The same study found a parallel pattern for bed capacity: for-profit homes made up about 56.8 percent of operating facilities in the province but averaged fewer beds per facility than the alternatives — 109.0 beds (SD 58.0) for for-profit homes versus 116.9 (79.9) for not-for-profit homes and 167.4 (84.0) for municipal homes. Both the staffing and bed-count findings come from the same cross-sectional/panel analysis, so they describe an ownership-status correlation, not a proven causal mechanism; the source itself flags that case-mix adjustment may not rule out unobserved organizational factors driving the difference.
A separate lever — public reimbursement policy, not ownership — shows the opposite direction on staffing. Hackmann (2019) finds that nursing homes increase skilled nurse staffing by 8.7 percent per resident following a universal 10 percent increase in Medicaid reimbursement rates, with a causal identification strategy rated high confidence on both direction and magnitude. Pro-competitive policies (more provider competition) also increase skilled nurse staffing, but by a smaller and unquantified margin, with lower confidence in both the estimate and the identification strategy.
A third strand concerns hospital mergers rather than nursing homes: a scoping review (Rosenbaum) finds that hospital mergers introduce organizational changes to the nursing workforce, including staffing changes, though the direction and size of those changes are not specified. The same review reports that nurse-sensitive patient safety and quality-of-care outcomes may not improve after a merger, but this rests on sparse, largely older evidence — 10 studies total, only 3 published after 2003 — that the review itself says cannot support strong causal conclusions.
None of the sources here isolate private equity ownership as distinct from for-profit or chain ownership generally, and none measure private equity's effect on nursing home bed capacity or staffing directly. The closest available evidence — for-profit/chain status in Ontario LTC homes — is an ownership-type proxy, not a private-equity-specific estimate, and the hospital-merger evidence describes a different care setting (acute care hospitals) under a different transaction type (mergers, not private equity acquisition). Whether these patterns extend to private-equity-owned nursing homes specifically is not established by anything on this page.