Condition category
Infections and Infestations
Date applied
Date assigned
Last edited
Retrospectively registered
Overall trial status
Recruitment status
No longer recruiting
Publication status
Results overdue

Plain English Summary

Background and study aims:
With significant government subsidies, health insurance coverage in China has reached 92 percent of the population. However, expansion of insurance coverage and corresponding increases in reimbursement rates have not kept pace with cost escalation resulting in increases in out-of-pocket spending by consumers and continuing variable and questionable effectiveness of service provision. A key underlying reason is the poor incentives faced by providers. Since the introduction of market reforms, providers were permitted to earn revenues (and make profits) by charging for services. Fee for service provider payment systems including a distorted price schedule that overcharges (“cost plus” pricing) for drugs and high-technological diagnostic tests are considered major drivers of high spending while contributing to unaffordable health care and impoverishment. The aim of the study is to evaluate the impact of this intervention on quality of care, efficiency and demand for health care through means of a cluster randomised controlled trial.

Who can participate?
The study takes place in two counties of Ningxia Province, covering approximately 600,000 individuals. Providers participating are those village clinics and township health centres located in the two counties.

What does the study involve?
In collaboration with the leadership of the Government of Ningxia Province in China, the project team has developed new policy measures with the goal of improving access to health services and quality of care. One component of the policy reforms is a shift in the payment system from fee for service to capitation with performance payments for primary care providers. Seventy percent of the annual budget is disbursed to health providers at the beginning of a year. The remaining thirty percent is withheld for performance assessment. A health provider’s overall performance is measured according to an index which is generated from a large range of indicators of quality of care. The relative performance of health providers at each level of care, assessed using this quality index, determines the amount of funds disbursed.

What are the possible benefits and risks of participating?
The intervention is designed to benefit all patients seeking outpatient care at the primary care level by improving the quality and efficiency of services. Possible risks relate to unanticipated responses to the change in incentives on the part of health providers that in turn affect the quality of health care.

Where is the study run from and how long is it expected to run?
The project is a team effort of faculty members and graduate students from Harvard, Oxford, Fudan, Shandong, and Ningxia Medical Universities, and the officials of the Ningxia provincial and several county governments. The study started at the beginning of 2010 and is expected to run until the end of 2013.

Who is funding the study?
Gates Foundation.

Who is the main contact?
Professor Winnie Yip

Trial website

Contact information



Primary contact

Prof Winnie Yip


Contact details

University of Oxford
Department of Public Health
Old Road Campus
United Kingdom

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

Enhancing TB control and the quality of primary health care through the realignment of provider incentives in China: a cluster randomised trial of capitation with performance payments


Study hypothesis

A change in the provider payment system from one of fee for service to capitation with performance payments will lead to an improvement in the quality of primary health care and a reduction in costs, particularly for TB patients.

Ethics approval

1. University of Oxford Ethical Review Committee, 02 July 2010, ref: 17-10
2. Ningxia Medical University Ethical Review, 20 May 2010

Study design

Matched-pair single centre non-blinded cluster randomised controlled trial

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet


Primary health care, tuberculosis, diabetes, heart disease


The intervention consists of a capitation budget with pay-for-performance. In the control arm, the default system is in place in which health providers are paid on a fee for service basis.

The capitation rate is estimated on the basis that it covers use of outpatient services at both the township health centre and village doctor level. Seventy percent of the budget is disbursed at the beginning of a year. The remaining thirty percent is withheld for performance assessment at mid- and end of the year. A health provider’s overall performance is measured as an index of a large range of structural and process-orientated indicators of quality of care. The relative performance of health providers at each level of care, assessed using the quality index, determines the amount of funds disbursed.

To prevent providers from reducing volume of service, quantity thresholds are specified in the contract. Pre-paid funds would have to be returned if a provider does not meet the volume threshold. To ensure there are incentives for village doctors to provide basic health care, they are also paid a per visit fee of 2 RMB, or 4 RMB if it is a home visit. The capitation budget is estimated such that if providers satisfy the volume threshold and meet performance standards, village doctors will on average earn 12,000 RMB a year while township health centres will earn enough to break even, covering its operating expenses.

Intervention type



Not Applicable

Drug names

Primary outcome measure

The primary outcomes are a set of process measures for following key tracer conditions: tuberculosis, hypertension, urinary tract infection, common cold, and pelvic inflammatory disease. The indicators reflect local standards defined by clinical guidelines.

Primary outcomes will be measured through a management information system that has been setup for the purposes of the research study and records information on every outpatient consultation in the study area. Outcomes will be measured at 6, 12 and 18 months.

Secondary outcome measures

1. Health care expenditure per outpatient visit (patient measure)
2. Outpatient caseload (village clinic measure)
3. Self-reported patient satisfaction index (population measure)
4. Percentage of working hours spent providing services in village clinic (doctor measure)

Secondary outcomes will be measured using data from a survey of households in the study area, survey of village doctors, and the health insurance information system.

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

The intervention is a government policy change to the provider payment system at the primary care level. Providers participating are those village clinics and township health centres located in the two pilot counties. There are no other pre-determined intervention inclusion criteria.

For measures of quality of care, individuals seeking outpatient care at primary care level of the health system. For measures of efficiency and caseload, village clinics and township health centres located in the two pilot counties.

Participant type


Age group




Target number of participants

300,000 individuals in the catchment area of the intervention health providers, equivalent to approximately 600,000 outpatient cases per year.

Participant exclusion criteria

Does not meet the inclusion criteria

Recruitment start date


Recruitment end date



Countries of recruitment


Trial participating centre

University of Oxford
United Kingdom

Sponsor information


Bill & Melinda Gates Foundation (USA)

Sponsor details

500 Fifth Avenue North
WA 98102
United States of America

Sponsor type




Funder type


Funder name

Bill and Melinda Gates Foundation (USA)

Alternative name(s)

बिल एंड मिलिंडा गेट्स फाउंडेशन, Bill & Melinda Gates Foundation, Gates Foundation, 比尔及梅琳达·盖茨基金会, BMGF, B&MGF

Funding Body Type

private sector organisation

Funding Body Subtype

Trusts, charities, foundations (both public and private)


United States of America

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Basic results (scientific)

Publication list

Publication citations

Additional files

Editorial Notes