HEALTH STATISITIC HEALTH INFORMATION SYSTEM :- Definition:- Health information system (HIS) is defined as a mechanism for the organizing and operating health services and also for research and training . Objectives of Health Information System:- To provide reliable , latest and useful health information to all levels of health officers and administrator. To contribute towards the achievement of objectives of health policies and programmes. To increase efficiency and quality in health management . To provide information about periodically and time –bound programmes. To amend health policies and working system on the basis of feedback
WHO EXPERT COMMITTEE CRITERIA Health information system should be population based. Health information system should be problem oriented. Health information system should employ functional and operational terms.(e.g. episodes of illness , treatment regimens, laboratory test.) The health information system should avoid the unnecessary agglomeration of data. The health information system should express information briefly and imaginatively,( e.g. tables, Charts, percentages.) The information system should make provision for feedback of data.
COMPONENT OF HEALTH INFORMATION SYSTEM Demography and vital events. Environmental health statistics. Health status- morality, morbidity, disability and quality of life. Health resources- facilities, beds , manpower. Utilization and non utilization of health services, attendances, admission, Waiting lists. Financial statistics ( cost , expenditure) related to particular objectives . Indices of outcome of medical care.
USE OF HEALTH INFORMATION To measure the health status of the people. To quantify health problems, medical and health care need. To compare local, national and international health status of the people. To plan effective management of health services and programmes. To assess the effectiveness and efficiency of accomplishing objectives of health services. To assess the attitudes and degree of satisfaction of the beneficiaries with the health system . To conduct research on particular problems of health and disease.
SOURCES OF HEALTH INFORMATION Census. Registration of vital events . Sample registration system . Notification of disease. Hospital records. Disease register. Record linkage. Epidemiological surveillance. Other health services records. Environmental health data Manpower statistics
Census : the total process of collecting , compiling and publishing demographic , economic and social data pertaining at a specific time or times , to all persons in a country or delimited territory. Registration of vital events : it is a legal registration , statistical recording and reporting of occurrence of statistics and the collection , compilation , presentation , analysis and distribution of statistics pertaining to vital events , i.e. live births , deaths, fatal deaths, marriages , divorces, adoptions, legitimation , recognitions , annulments and legal separation. Sample registration system: it is used to provide reliable estimates of birth and death rates at the national and state level. Notification of disease: notification provides valuable information about fluctuations in disease frequency . It is also provides early warning about new occurrence or outbreaks or disease.
Hospital record:- The hospital records provide information about age , sex, diagnosis , time interval between occurrence and hospital admission , distribution of patients according to different social and biological characteristics . Disease register :- Morbidity registers exist only for certain diseases and condition . It also provide information about duration of illness , case fatality and survival. Record linkage:- medical record linkage implies the assembly and is maintained for each individual in a population , of a file of the more important records relating to death. Epidemiological surveillance:- it is a system used to a report on the occurrence of new cases and on effort to control disease. Other health service record :- it includes outpatient departments ,PHC , Sub Centre , polyclinics Private practitioners , MCH centre , School health Records Diabetic and Hypertensive clinics.
Environmental Health data :- it is helpful in the identification and qualification of causative factors of disease . Collection of environmental data plays an essential role to remain as a major problem for the future. Manpower statistics :- it is a information about physicians , dentists , pharmacists , veterinarians , hospital nurse , medical technicians etc. their records are maintained by the state medical / dental / nursing councils and the directorates of medical education