HONGKONG urgently needs a health authority to run public primary health care services and hospitals, according to leading medical figure Professor Rosie Young Tse-tse. Reviewing recent health care developments in the territory, the pro-vice-chancellor of the University of Hongkong said she hoped to see a closer link of the two services for better and more effective results. Professor Young, 61, who plans to leave her teaching post in 1995, said: ''I think it can be done before 1997, but not before my retirement.'' The integration of primary health care and hospital services was recommended by the disbanded Provisional Hospital Authority (PHA). Besides better patient care, the PHA had said it would achieve greater cost-effectiveness and promote opportunities for staff development and training. At present, public hospitals are run by the Hospital Authority and primary health care, such as prevention and out-patient services, are provided by the Department of Health. Professor Young hoped more people would realise the importance of family medicine, with the provision of more post-graduate training by the Academy of Medicine. But she believed it was important to revise the present health care system, which has been attacked by critics for failing to provide additional sources of revenue. They claim the system, mainly financed by taxpayers, could face a possible shortage of funds if the present low hospital fees are maintained at just $43 per day for general beds. Professor Young said she agreed with the Legislative Council's medical profession representative, Dr Leong Che-hung, that the Government had failed to provide a long-term health care policy. ''At present, the sandwich class is the poorest group. They cannot afford the expensive private hospital services, but do not want to stay at public hospitals,'' she said. She hoped the issue could be resolved through policy debates. She favoured the idea of voluntary medical insurance to provide an extra source of medical revenue and protection for clients. Outstanding medical professionals like Director of the Hospital Authority Dr Yeoh Eng-kiong, President of the Hongkong Medical Association Dr David Fang Jin-sheng and Secretary of the Hongkong Marrow Match Foundation Dr Raymond Liang Hin-suen were all Professor Young's proteges. With 39 years of medicine-teaching experience, Professor Young said she hoped health care economy and management could be added into the present curriculum. She believes the two aspects, which are absent in her university's curriculum, should be introduced in the light of advanced medical treatment using expensive equipment, which pushes up the medical cost. With better medical economic ideas, doctors would be wiser in administering treatment and results would be more cost-effective. Doctors should understand how to control spending and set priorities in treatment, Professor Young said. Medical experts are concerned that expensive treatments like liver and heart transplants can benefit more patients if the same budgets are allocated to the treatment of patients in less severe conditions. She also wants to see more collaboration between the University of Hongkong and the Chinese University, which both run medical faculties. The present dialogue was maintained by societies of different specialities, and the specialty co-ordination committees under the Hospital Authority.