The research, published in BMC Geriatrics by Hang Li and Huijun Liu of Xi’an Jiaotong University’s School of Public Policy and Administration and Weihong Zeng of the university’s Jinhe Center for Economic Research, examines whether health deprivation, a measurable deficit in an older person’s physical or cognitive wellbeing, is linked to unmet needs for community services. The answer is stark: older adults experiencing health deprivation were significantly more likely to report that their needs for community services went unmet. In other words, the people with the greatest need were the least likely to be reached by the system designed to serve them.

To reach that conclusion, the team drew on one of the most valuable longitudinal resources in aging research: the Chinese Longitudinal Health Longevity Survey, or CLHLS. The study used an unbalanced panel of 14,762 respondents aged 60 or older, tracked across three survey waves in 2011, 2014, and 2018. An unbalanced panel means not every participant appears in every wave, which is an unavoidable reality when following people deep into old age, but it also allows researchers to capture far more of the aging process than a single snapshot ever could.

The analytical engine behind the findings was a set of fixed effects models, a statistical technique that deserves a moment of explanation because it is central to why the results matter. In observational data, older adults who are healthier differ from those who are deprived in countless ways: income, education, family structure, where they live. A naive comparison would tangle all of those differences together with the effect of health itself. Fixed effects models solve part of this problem by comparing each person with themselves over time. By focusing on within-person changes, the models effectively absorb every stable characteristic of an individual, observed or not, and ask whether periods in which a person experiences greater health deprivation are also periods in which their community service needs go unmet.

That design gives the finding considerable weight. The association between health deprivation and unmet service needs persisted even after stripping out the confounding influence of stable personal characteristics. And the study documented a second, downstream consequence: unmet needs for community services were themselves associated with an increased care burden on families. When formal services fail to arrive, the work does not disappear. It shifts, usually onto spouses, children, and other relatives, many of whom are aging themselves or balancing caregiving with employment.

The authors interpret their results through the lens of risk selection, a concept borrowed from economics and insurance theory. In a well-functioning long-term care market, services should flow toward need. But providers of home and community-based services face real costs, and serving frail, medically complex clients is more expensive and more difficult than serving healthier ones. When providers can identify who is likely to be costly, they have an incentive to select the profitable cases, the cream, and skim away from the rest. Health deprivation, in this framework, functions as a signal that providers use, deliberately or not, to sort potential service recipients. Those who carry the signal of high need end up with lower accessibility.

What makes this study distinctive is its demand-side framing. Much of the existing literature on cream skimming focuses on the supply side, on the behavior of insurers or providers. The authors argue that existing theories have not adequately explained why risk selection continues to plague what they call the premature long-term care market in China, a market still in an early stage of development where regulation, standardization, and financing mechanisms remain incomplete. Their findings support what they describe as an explanatory interpretation in which health deprivation serves as a selection signal, corresponding to lower accessibility to community services and, crucially, a pattern they call re-familization from the demand side.

Re-familization is a term worth unpacking, because it captures the quiet policy reversal the study documents. Over recent decades, many welfare states, China included, have worked to de-familize care, shifting responsibility from families toward formal institutions and public services. The findings here suggest a counter-movement operating not through legislation but through market behavior: when community services systematically bypass the most deprived older adults, the burden of their care snaps back to the household. Families become the residual claimants of a system that failed to select their relatives. The result is a double penalty, in which poor health both reduces access to formal support and increases the informal demands placed on loved ones.

The scale of the demographic backdrop makes these findings urgent. China’s aging population has dramatically increased demand for community services among older adults, and the country has invested heavily in home and community-based care as an alternative to institutional care, which is costlier and culturally less favored for many families. Community services, ranging from daily assistance to health-related support, are meant to be the connective tissue that allows people to age in place. If the allocation of those services follows a cream-skimming logic, the policy instrument designed to relieve family burden may instead be reinforcing it precisely where frailty is greatest.

Methodologically, the study’s reliance on three waves of a large national survey spanning seven years gives it a robustness that cross-sectional studies cannot match, and the fixed effects approach rules out a large class of alternative explanations. Still, the authors are careful about interpretation. The work uses secondary data from the publicly available CLHLS database, and the analysis establishes an association between health deprivation and unmet needs rather than a fully identified causal mechanism. The selection signal that providers respond to may operate through many channels, from visible frailty at the point of intake to the practical difficulties that deprived older adults face in navigating application processes. Disentangling those channels is a task for future research.

The implications, however, reach well beyond China. Rapidly aging societies across East Asia, Europe, and North America are all expanding home and community-based services, and all face versions of the same incentive problem: providers who can choose their clients will tend to choose the easy ones. The Chinese evidence offers a quantitative warning of what happens when that tendency goes unchecked. The oldest and sickest citizens, the ones for whom community care was conceived, drift back into the arms of their families, and the promise of a modern long-term care system quietly inverts itself. Recognizing health deprivation as a selection signal, the authors suggest, is the first step toward designing financing and oversight mechanisms that make the highest-need older adults impossible to skim away.

Subject of Research: Health deprivation and unmet needs for community services among older adults in China

Article Title: Cream skimming: how does health deprivation affect older adults’ access to community services?

Article References: Li, H., Liu, H., & Zeng, W. (2026). Cream skimming: how does health deprivation affect older adults’ access to community services?. BMC Geriatrics. https://doi.org/10.1186/s12877-026-08396-5

Image Credits: AI Generated

DOI: 10.1186/s12877-026-08396-5

Keywords: cream skimming, health deprivation, unmet needs, community services, long-term care, older adults, aging population, re-familization, risk selection, China, CLHLS, gerontology

The research, led by Xiaoying Zhu of Nanjing University of Chinese Medicine and the Nossal Institute for Global Health at the University of Melbourne, together with colleagues including Daniel Ll Strachan, Shenglan Tang, Tiara Marthias, Ajay Mahal and Barbara McPake, is built on face-to-face, semi-structured interviews with 21 physicians sampled from two hospitals with deliberately different incentive structures. Conducted in 2024, the interviews probed how doctors experience and respond to the Diagnosis-Related Group reform, known globally as DRG payment. The analysis followed an inductive thematic approach before applying a deductive framework, allowing the researchers to surface patterns in the physicians’ own words before testing them against established behavioural theory. The result is one of the most granular portraits to date of what health economists call cream-skimming: the systematic selection of profitable patients and the subtle exclusion of those whose care is expected to cost more than the hospital will be paid.

DRG payment systems, first developed in the United States and now deployed in dozens of countries, were designed to curb the runaway costs of fee-for-service medicine. Instead of paying hospitals for every test, drug and bed-day, the payer assigns each admission to a fixed-price category based on the diagnosis, so the hospital receives a predetermined sum regardless of how much the treatment actually costs. In theory, this pushes hospitals to become more efficient, eliminate unnecessary procedures and shorten stays. But the same mechanism creates a structural hazard: a patient whose actual treatment exceeds the fixed price becomes a financial loss, and a patient who needs less than the fixed price generates a surplus. In China, where the government has simultaneously pledged to advance healthcare equity while rolling out DRG reform nationwide, the tension between fiscal discipline and fair access has never been sharper.

The Nanjing interviews reveal that the phrase ‘more work means less pay’ is not a complaint muttered in passing but an operating principle that shapes admission decisions. Physicians described assessing, often within minutes, whether the expected DRG reimbursement would cover the anticipated treatment costs of a particular patient. Clinically complex cases — those with multiple comorbidities, unclear diagnoses, or likely prolonged stays — emerged as the paradigmatic financially risky admissions. The study found that patient selection was not framed by the doctors as greed or malice, but as an adaptive response: a rational adjustment to incentives that penalize exactly the kind of resource-intensive care that clinical complexity demands. When the payment rule makes complexity costly, the doctors’ calculus bends toward avoidance, whether they want it to or not.

What distinguishes this study is its effort to dissect the anatomy of the decision rather than merely cataloguing its existence. The researchers found that physicians’ choices were shaped by three interacting dimensions: capability, opportunity and motivation. Capability captured the physician’s confidence in managing financially risky cases under the constraints of the fixed payment — a doctor experienced in the relevant specialty, or familiar with the DRG category’s payment boundary, may feel able to admit a patient whose costs would overshoot the reimbursement. Opportunity encompassed the physical and social conditions that allowed a physician to balance financial risk against quality of care, including the availability of referral channels, the support of the hospital environment, and the flexibility to structure a treatment plan that keeps costs within the payment envelope. Motivation concerned the value physicians placed on different possible outcomes — the welfare of the patient, the fulfilment of professional obligations, and the recognition their decisions would earn within the hospital’s performance system.

The alignment of these three dimensions proved decisive. Physicians were most likely to admit a financially risky patient when all three conditions held simultaneously: when they believed the patient could be effectively managed under DRG payment, when they expected their decision to produce meaningful and recognised outcomes, and when they valued those outcomes, including the patient’s welfare and their own sense of professional duty. Remove any one of the three — sap a doctor’s confidence that the case can be managed without a punishing loss, block the pathways that would make careful management possible, or hollow out the recognition and reward for doing the right thing — and the willingness to accept a costly patient collapses. This finding reframes cream-skimming not as a fixed character flaw of physicians but as a system-dependent behaviour, sensitive to how hospitals structure support, performance metrics and clinical pathways.

The implications reach far beyond Nanjing. DRG reform is among the most ambitious payment experiments in modern health policy, and China’s version is being implemented at a scale no other health system has attempted, covering thousands of hospitals and hundreds of millions of insured patients. Studies from European and East Asian systems have repeatedly documented the same perverse incentives — upcoding of diagnoses to reach higher-paying categories, premature discharges, and the quiet diversion of complex patients to other institutions. But the Nanjing study adds a crucial layer of mechanism, showing how the behaviour is mediated by doctors’ perceptions of financial risk and by the institutional scaffolding that either absorbs or amplifies that risk. Whether a high-cost patient is admitted may depend less on the payment rule itself than on whether the hospital has created the conditions under which a physician can manage the case without absorbing the loss personally or as a department.

The authors’ conclusions point toward a set of concrete correctives. Improving equitable access, they argue, requires realigning hospital performance metrics with clinical need rather than purely with financial outcomes, so that physicians who take on difficult patients are recognised and rewarded rather than penalized. It requires strengthening referral and post-acute care pathways, so that complex cases can move through the system in ways that distribute cost and responsibility rather than concentrating both on a single admission. And it requires reducing reliance on individual risk-based decision-making through team-based support, spreading the burden of financially risky cases across the institution instead of leaving each physician to weigh it alone at the bedside. In each case, the goal is the same: to change the ecology in which the admission decision is made, rather than to exhort doctors to behave better within an ecology that punishes them for it.

For patients, the stakes are stark. A physician who declines or deflects a complex admission does not simply shift an accounting problem; the patient may face longer waits, fragmented care, or repeated referrals before reaching someone willing to treat them. For the most vulnerable — the elderly with multiple chronic conditions, the poor with advanced disease — the cumulative effect of thousands of individual admission decisions, each nudged by the same financial logic, is a system that quietly rationed care by complexity. That is the opposite of what health equity requires, and it is why the study’s authors frame their work as an urgent input into China’s equity commitments. The research received no specific grant from any funding agency; Zhu’s PhD program was supported by a China Scholarship Council–University of Melbourne PhD Scholarship.

The study is a reminder that health payment reform is never merely a technical exercise in accounting. Every fixed price, every performance indicator, every cost-allocation rule lands eventually on a human decision made under pressure — and when the rule says that the hardest patients are the least rewarding, the system must decide whether it intends that outcome or will redesign itself to prevent it. The Nanjing physicians interviewed for this study did not invent the dilemma; they inherited it from the architecture of the reform. What the study makes clear is that the architecture can be changed, and that the willingness of doctors to care for those who need them most depends on it. As China refines its DRG rollout, the words of its own clinicians — more work means less pay — stand as both a warning and a blueprint for reform.

Subject of Research: Physicians' patient selection decision-making under China's DRG hospital payment reform in Nanjing

Article Title: “More work means less pay”: a qualitative understanding of physicians’ patient selection decision-making under DRG reform in Nanjing, China

Article References: Zhu, X., Strachan, D. L., Tang, S., Marthias, T., Mahal, A., & McPake, B. (2026). “More work means less pay”: a qualitative understanding of physicians’ patient selection decision-making under DRG reform in Nanjing, China. International Journal for Equity in Health. https://doi.org/10.1186/s12939-026-03044-1

Image Credits: AI Generated

DOI: 10.1186/s12939-026-03044-1

Keywords: DRG payment, cream skimming, patient selection, physician behaviour, health policy, health equity, China, Nanjing, financial incentives, hospital payment reform, qualitative research, health insurance