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[ZHENGZHOU] Just before midnight, the pavement outside the glowing high-rise towers of the First Affiliated Hospital of Zhengzhou University is littered with slumbering bodies. Splayed on colourful mats or tucked into folding cots, these are patients' relatives.
Inside, beds line hallways and crowd elevator lobbies, while relatives share gurneys with patients and doze in brightly lit stairwells. The world's biggest hospital with about 7,000 beds, Zhengzhou First Affiliated, in central China, is still not big enough.
"My dad paid for a bed but still couldn't get one," said Ma Wenxiao, a university student from the central city of Wuhan, whose father waited two days for a bed after travelling to Zhengzhou for chemotherapy.
Demand for healthcare is booming in China, driven by a growing middle class, improved health insurance coverage and an aging population. In response, some of the country's public hospitals are adding beds by the thousand.
China now has 16 public hospitals with more than 3,000 beds. NewYork-Presbyterian, the largest hospital in the United States according to Becker's Hospital Review, has 2,478 beds.
But unlike the rest of the economy, where China wants growth, this expansion has policymakers worried.
Hospital build-outs testify to a lack of public confidence in rural healthcare. They add to local government debt and may not be providing cost-effective care.
Last summer, Beijing issued a directive restricting expansion of public hospitals, but hospital administrators appear to be finding ways around it.
Hospitals' building binge, and the government's response, highlights the dilemmas facing the country's healthcare system, experts say.
In China today, says Liu Tingfang, a professor at Tsinghua University, "hospitals have to expand if they want to survive".
BIGGER IS BETTER
Despite government efforts to encourage patients to use smaller local hospitals, most Chinese still feel safer being treated for everything from ear aches to emphysema in major university-affiliated hospitals in big cities.
Hospital heads, too, believe that bigger is better. Government funding provides less than 10 per cent of state hospital operating budgets, and the state holds public hospital fees low to keep care affordable.
As China has chipped away at the drug mark-ups they once relied on, many hospitals see expansion as a way to raise revenues.
Big hospitals often have support from local governments, which approve and help fund hospital expansion in part because they are evaluated on their ability to drive growth.
China's big hospitals are now so large that some have their own police stations. One doctor at the First Affiliated Hospital of Wenzhou Medical University even briefly wore roller skates to get around the wards faster after the hospital's expansion.
But even as patients flock to them, giant hospitals have become magnets for controversy.
Patients come expecting to see top doctors, says Li Huijuan, a Beijing-based lawyer who handles medical cases.
But rapidly expanding hospitals have to hire less experienced medics, says Li, creating a gap between patient expectations and reality that "can cause or exacerbate conflicts between doctors and patients". Rapid expansion can also increase pressure on medical personnel, as increases in bed numbers may outpace growth in staffing levels.
And as the recent Mers outbreak in South Korea showed, large and oversubscribed hospitals can be conduits for infection and disease.
About half of the nearly 200 cases in the country were traced to the 1,900-bed Samsung Medical Center in Seoul, where long waits for a bed are common. "When you have a lot of people packed in a small area, it increases the risk of transmission of infectious pathogens,"says Neil Fishman, associate chief medical officer at the University of Pennsylvania Health System.
An official at Zhengzhou First Affiliated said the large volume of patients was a reflection of demand, and that the hospital did daily inspections to ensure patient safety. The hospital declined requests for an interview. According to its website, it plans to add 3,000 beds at another location.
LOW RETURNS ON INVESTMENT
The problems that giant hospitals create ripple through China's healthcare system. Some 60 to 80 percent of patients in big hospitals could be treated at community medical centres, says Ma Jingdong, associate professor at Huazhong University of Science & Technology in Wuhan.
Big hospitals may have high cost bases and be poorly suited to providing continuous care for chronic diseases. "We may be spending a lot but in reality, we may not seeing the same level of returns in terms of public health," says Prof Ma.
Chen Xiaoming, president of the First Affiliated Hospital of Wenzhou Medical University, told Reuters that the number of beds at his hospital - currently 3,770 at two locations - may decline in coming years in line with government reforms.
But the public's faith in big hospitals may be hard to shake. Standing in a swirl of people at the Zhengzhou hospital, a man who would only give his name as Cai said he hadn't thought twice about rising at 5 am and waiting for several hours so that his wife could see a gynaecologist, perhaps for a minute or less. "This is normal," Mr Cai said, surveying the crowd. "Chinese people are used to this."