|No matter how one looks at it—as differences across nations or as differences within nations—poor people systematically suffer from worse health outcomes than rich people. What role does medical care play?|
Numerous studies have documented the role of households in producing good health outcomes—children are healthier when mothers are more educated; rich households are better able to “insure” against health shocks; rich households live in areas with better sanitation and enjoy better nutrition.Based on these studies the explanations for health outcomes among poor people have centered almost exclusively on household choices: either poor people do not use the health system as much as they should or if they do go to doctors it’s usually when it’s too late.
|Haji Mirza Hasan Baig, a medical practitioner, waits for business in New Dehli. Photo by Sandeep Kuriakose.|
Earlier studies found no relationship between health outcomes and the presence or absence of a primary health care center, leaving many questions about providers unanswered: Was the lack of a relationship because the doctor was never there? Was the doctor qualified (hold a degree) and competent (knowledgeable)? Did people go to the primary health care center? The data to answer these crucial questions simply didn't exist.
Since 2001, a team of researchers at the World Bank (including myself, Jeffrey Hammer, Paul Gertler), the University of Maryland (Kenneth Leonard), and University of California, Berkeley(Sarah Barber) have been looking at the supply side of health care using new survey techniques to look at the role of the medical system (and medical providers) in determining health outcomes, and to build a set of country case studies. So far we have looked at these questions for Delhi, India and four low- and middle-income countries (Indonesia, Mexico, Paraguay, and Tanzania ).
The Delhi Study
The Delhi study followed 1,600 individuals over a two-year period (with the Institute of Socio-Economic Research on Development and Democracy). Each individual in the survey was observed close to 50 times during this time.
We documented the identity of the doctors visited by each household and of doctors not visited but were in the neighborhood. A sub-sample of these doctors was tested on what they knew through a series of “vignettes”— questions generated through scenarios of fictitious patients with varying symptoms. We documented all the questions asked, the examinations performed, and the treatments recommended, and we compared them against a “standard-of-practice” measure of “competence” (what you know) compiled by a team of experts. One month after the vignette test was administered we observed doctors in their practices for a day to see whether they actually used their reported knowledge .
Does competence translate into better health care delivery?
We had no prior beliefs before looking at the data, and had heard two types of stories. There was the doctor who was “so good that all he had to do was look in your eyes, and he would know what was wrong” (more competent, poor quality practice) and there was the doctor who “is very good, and what is more, he will read and read if he does not understand your case” (more competent, better quality practice)
This distinction is important for policy. If health-care delivery is poor because doctors are incompetent, the appropriate policy is better training. However if health care is poor, not because doctors are incompetent, but because they do not do much, then better incentives should help . What does the data say?
Medical Practitioners in Dehli, India: Knowledge and Practice
Can households judge the quality of care they receive?
This part of the study (currently underway) asked our survey households about the doctors in their neighborhood, for the purpose of comparing their valuations of quality with our vignettes-based (and practice-based) definition of quality.
Ifhouseholds cannot judge the competence of doctors, providing more information to them about provider qualification becomes important. This could be done as simply as using visible markers that distinguish types of medical practitioners (for example, posting stickers of different colors outside the offices of doctors with a MBBS degree and outside the offices of those without). The second option is to help households decide when a problem is serious enough to require medical attention and which sort of practitioner would be best (public or private providers).
Policies for improving the quality of medical care in India
Additional training for providers—an oft-advocated policy—is unlikely to improve the quality of service delivery, at least in India. Many doctors know what to do but simply don’t do it, responding to their direct incentives: public doctors are on salary and have very little incentive to provide service and private doctors want repeat business.
Policies to change the image of primary health care in the public sector could improve service delivery, but implementing such policies would require substantial investments. Setting benchmarks of service that people can trust and rely on would be a good start. So would incentives for public doctors to perform at higher levels (perhaps through “bonus” schemes or empowering local authorities to hire and fire).
Findings from India, Indonesia, Mexico, Paraguay, and Tanzania
In all these studies we can think of health outcomes among the poor as an inter-related set of factors:
Using these three processes as criteria for assessing the quality of health care, the case studies reveal notable differences in service quality across the five countries :
The findings, interpretations, and conclusions expressed in this brief are entirely those of the authors. They do not necessarily represent the view of the World Bank, its Executive Directors, or the countries they represent.
JISHNU DAS is an Economist in the Development Research Group (Human Development and Public Services Team). He is interested in the delivery of basic services to households and is currently working on issues relating to the private and public provision of health and education in India and Zambia. *email@example.com
Project Information :http://econ.worldbank.org/projects/quality_of_medical_care
 Abhijit Banerjee, Angus Deaton and Esther Duflo, "Wealth, Health and Health Services in Rural Rajasthan," American Economic Review, Papers and Proceedings 94(2): 326-330, 2004.
 See Jishnu Das and Carolina Sánchez-Páramo,"Short but not Sweet: New Evidence on Short Duration Morbidities from India," Policy Research Working Paper 2971, World Bank, Development Research Group, Washington, D.C., 2003.
 M. Makinen, H. Waters, M. Rauch, N. Almagambetova, R. Bitran, L. Gilson, D. McIntyre, S. Pannarunothai, A.L. Prieto, G. Ubilla, & S. Ram, “Inequalities in health care use and expenditures: empirical data from eight developing countries and countries in transition,” Bulletin of the World Health Organization 78 (1): 55-65, 2000.
 The vignettes were designed in consultation with Dr. Tejvir Singh Khurana (University of Pennsylvania) and Dr. Arvind Taneja (Delhi, India). The evaluations of treatments were conducted independently by doctors in two different teams led by Dr. Jonathon Ellen (Johns Hopkins University in Baltimore, Maryland) and by Dr. Zahida khwaja (Lahore, Pakistan).
 Jishnu Das and Jeffrey Hammer, "Which Doctor? Combining Vignettes and Item Response to Measure Clinical Competence," Journal of Development Economics (forthcoming), 2005 (based on Policy Research Working Paper3301, 2004); and Jishnu Das and Jeffrey Hammer, "Strained Mercy: The Quality of Medical Care in Delhi," Economic and Political Weekly 39 (9): 951-965, 2004 (based on Policy Research Working Paper3228, 2004).
 Jishnu Das and Jeffrey Hammer, "Money for Nothing: The Dire Straits of Medical Practice in India," World Bank Research Working Papers3669, 2005.
 WHO Action Program on Essential Drugs and Vaccines, "How to investigate drug use in health facilities: Selected drug use indicators," Geneva, World Health Organization, 1993.
 World Development Report 2006: Equity and Development. Washington, D.C.: World Bank, 2005.http://www.worldbank.org/wdr2006
 This collection of case studies is under review for an issue of the journal Health Affairs: