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PubMed1992

Hospital records as a data source for occupational disease surveillance: a feasibility study.

To assess the feasibility of using hospital records for occupational disease surveillance and to evaluate the quality of the industry/occupation (I/O) information available in these records, the computer file of all discharge diagnoses from a large health maintenance organization during 1985 was reviewed. The frequencies of discharge diagnoses previously listed as Sentinel Health Events (Occupational), or SHE (O), were calculated and three possible SHE(O) diagnoses--lung cancer, bladder cancer, and toxic hepatitis--were selected for further review. Outpatient charts of patients discharged for each diagnosis were abstracted with regard to I/O information and the discharged patients were interviewed by telephone to obtain a lifetime occupational history. The accuracy of the I/O information obtained from the hospital chart was compared to that obtained by patient interview by number of digits matched on standard classification codes. The frequencies of matches for occupation and industry were greater for "usual" than for "last" categories with both cancer diagnoses, but were similar for "usual" and "last" categories with toxic hepatitis. To assess the proportion of each possible SHE(O) diagnosis that was related to workplace exposures, the I/O information obtained by interview was rated in a blinded fashion by an experienced occupational medicine physician. The highest probability ratings for work-relatedness were noted for lung cancer, primarily due to asbestos exposure. The results of this study suggest that hospital records can be used to identify possible SHE(O); if adequate I/O information is available, then work-relatedness can be assessed. However, the accuracy of I/O obtained from hospital charts is relatively low. The efficient and accurate collection of I/O information from hospital records will require the use of a simple, easily coded instrument to be routinely administered on admission.

Asbestos↗
PubMed1964

HOSPITAL RECORDS.

Explore the source record for details and available documents.

Hospital Records↗
PubMed2002

Resource use data by patient report or hospital records: do they agree?

BACKGROUND: Economic evaluations alongside clinical trials are becoming increasingly common. Cost data are often collected through the use of postal questionnaires; however, the accuracy of this method is uncertain. We compared postal questionnaires with hospital records for collecting data on physiotherapy service use. METHODS: As part of a randomised trial of orthopaedic medicine compared with orthopaedic surgery we collected physiotherapy use data on a group of patients from retrospective postal questionnaires and from hospital records. RESULTS: 315 patients were referred for physiotherapy. Hospital data on attendances was available for 30% (n = 96), compared with 48% (n = 150) of patients completing questionnaire data (95% Cl for difference = 10% to 24%); 19% (n = 59) had data available from both sources. The two methods produced an intraclass correlation coefficient of 0.54 (95% Cl 0.31 to 0.70). However, the two methods produced significantly different estimates of resource use with patient self report recalling a mean of 1.3 extra visits (95% Cl 0.4 to 2.2) compared with hospital records. CONCLUSIONS: Using questionnaires in this study produced data on a greater number of patients compared with examination of hospital records. However, the two data sources did differ in the quantity of physiotherapy used and this should be taken into account in any analysis.

Adult↗
PubMed2002

The quality of hospital records of urethral catheterisation.

BACKGROUND: This prospective and retrospective study carried out over a period of one month (50 patients) looked at the quality of hospital records of urethral catheterisation with reference to the hospital protocol. The patients were catheterised on general surgical wards as well as in theatre. RESULTS: The quality of hospital records of this procedure was poor and a number of complications noted. CONCLUSIONS: Good documentation of urethral catheterisation would result in a better quality of audit and, therefore, identify potential ways of minimising complications. We recommend this by regular audit of hospital records, re-inforcement of protocols and informed consent of this procedure, with particular reference to theatre.

Hospital Records↗
PubMed1980

Taeniasis, cysticercosis and echinococcosis/hydatidosis in Nigeria: I--prevalence of human taeniasis, cysticercosis and hydatidosis based on a retrospective analysis of hospital records.

A retrospective analysis of hospital records in 3 ecological zones of Nigeria was carried out to ascertain the prevalence of human taeniasis, cysticercosis and hydatidosis. The prevalence of Taenia infection in Sudan, Bauchi Plateau and Northern Guinea zones was 0.9%, 0.6% and 0.6%, respectively. The prevalence of human taeniasis by age and sex in the 3 ecological zones indicates that males were more often infected. Because males by habit eat more "suya" (half-grilled beef) than females, they are more likely to be exposed to Taenia saginata cysts. As for age factor, Taenia infection was more common up to the age of 40. Human hydatidosis was recorded only once in the Sudan zone and was not recorded at all in the Northern Guinea and Bauchi zones. Human cysticercosis was not documented in any of the three ecological zones covered by the survey. It is suspected that the low prevalence or the non-documentation of some of these diseases is due to poor diagnostic facilities and inefficient disease-recording system.

Adolescent↗
PubMed2006

Data sources for measuring comorbidity: a comparison of hospital records and medicare claims for cancer patients.

BACKGROUND: Identifying appropriate comorbidity data sources is a key consideration in health services and outcomes research. OBJECTIVE: Using cancer patients as an example, we compared comorbid conditions identified: 1) on the discharge facesheet versus full hospital medical record and 2) in the hospital record versus Medicare claims, both precancer diagnosis and associated with a cancer treatment-related index hospitalization. METHODS: We used data from 1995 Surveillance, Epidemiology and End Results patterns of care studies for 1,382 patients. Comorbid conditions were ascertained from the hospital record associated with the most definitive cancer treatment and Medicare claims. We calculated the prevalence for and assessed concordances among 12 conditions derived from the hospital record facesheet; full hospital record; Medicare claims precancer diagnosis, with and without a rule-out algorithm applied; and Medicare claims associated with an index hospitalization. RESULTS: The proportion of patients with one or more comorbid conditions varied by data source, from 21% for the facesheet to 85% for prediagnosis Medicare claims without the rule-out algorithm. Condition prevalences were substantially lower for the facesheet compared with the full hospital record. For prediagnosis Medicare claims, condition prevalences were more than 1.7 times greater in the absence of an algorithm to screen for rule-out diagnoses. Measures assessing concordance between the full hospital record and prediagnosis Medicare claims (rule-out algorithm applied) showed modest agreement. CONCLUSIONS: The hospital record and Medicare claims are complementary data sources for identifying comorbid conditions. Comorbidity is greatly underascertained when derived only from the facesheet of the hospital record. Investigators using Part B Medicare claims to measure comorbidity should remove conditions that are listed for purposes of generating bills but are not true comorbidities.

Aged↗
PubMed2004

Accuracy of Medicare claims-based diagnosis of acute myocardial infarction: estimating positive predictive value on the basis of review of hospital records.

BACKGROUND: Many cardiovascular epidemiologic studies rely on diagnosis codes in health care claims databases. Despite important changes in the care and diagnosis of acute myocardial infarction (AMI), the validity of hospital discharge diagnosis codes for AMI in the US Medicare system has not been recently examined. Our objective was to examine the accuracy of International Classification of Diseases--ninth revision--Clinical Modifications (ICD-9-CM) discharge diagnosis codes and diagnosis-related groups (DRG) codes for AMI in a Medicare claims database. METHODS: We sampled hospitalization episodes from Medicare beneficiaries in Pennsylvania during 1999, 2000, or both. We used Medicare data to identify patients with hospitalizations containing indicators of AMI (ICD-9-CM diagnosis codes 410.X0 and 410.X1 or DRG codes 121, 122, and 123). Hospital records for these episodes were reviewed by trained abstractors using World Health Organization criteria for diagnosing AMI. We then calculated the positive predictive value of Medicare claims-based definitions of AMI. RESULTS: Of 2200 hospitalization episodes with Medicare diagnosis codes suggestive of AMI, 2022 hospital records (91.9%) were obtained. The positive predictive value for a primary Medicare claims-based definition was 94.1% (95% CI, 93.0%-95.2%). Positive predictive values for alternative claims-based definitions ranged slightly, with the definition including DRG codes and length-of-stay restrictions yielding the highest positive predictive value, 95.4% (95% CI, 94.3%-96.4%). Subjects with a history of myocardial infarction had a significantly lower positive predictive value than subjects without a history of myocardial infarction (88.1% vs 94.6%, P <.001). CONCLUSIONS: In this study, we observed high positive predictive values for a Medicare claims-based diagnosis of AMI and a diagnosis based on structured hospital record review.

Aged↗
PubMed1980

Patient access to hospital records: a pilot project.

The results of granting hospitalized psychiatric patients the right of access to their current hospital record were investigated. Thirty-nine percent of the patients granted that right utilized it. No statistically significant difference between the patients granted this right and those not granted the right of access were detected in the measures of the effectiveness of the treatment program, the patient's attitude towards hospital or its staff, or the actual content of the record. Patients availing themselves of the right of access, however, did have a greater awareness of the treatment program and the content and purpose of the record, although in the main these differences were not statistically significant. Staff were comfortable with open charting and felt it could be used as a therapeutic tool.

Adult↗
PubMed1979

Studies on the reliability of vital and health records: I. Comparison of cause of death and hospital record diagnoses.

Based on computer linkage of death records and hospital discharge abstracts, underlying cause of death and discharge diagnoses are compared for 9,724 Vermont resident in-hospital deaths occurring between 1969 and 1975. The agreement between the diagnoses recorded in the two data systems provides a measure of the reproducibility of recording, abstracting, and coding practices. Using the first three digits of the International Classification of Diseases, the agreement between cause and closest medical record diagnosis was 72 per cent. Concordance declined by patient age and length of hospital stay and varied significantly by coded cause of death. A major source of variation was the hospital of death where agreement levels ranged between 45 and 84 per cent. The latter finding is regarded as a potential starting point for targeting investigation of sources of discrepancy and initiating efforts to improve diagnosis recording and coding in the two record systems. The value of both depends on continuing efforts to improve and maintain data quality.

Age Factors↗
PubMed2002

Haematological malignancies in a general population, based on information collected from a population study, hospital records, and the Cancer Registry of Norway: the Tromsø Study.

OBJECTIVES: To investigate the prevalence and incidence of haematological malignancies, and to compare the rates found with those reported from the Cancer Registry of Norway. METHODS: Three sources of information were used: (1) automated blood cell counts from 27 145 persons older than 24 yr (72% of those invited), participating in a population study (the Tromsø Study 1994-95); (2) patient medical records at the University Hospital of Tromsø during 1991-96; (3) the Cancer Registry of Norway. RESULTS: (1) In the population study, 13 new cases of haematological malignancies were diagnosed. For five of these the early detection was probably beneficial. (2) From the hospital records another 59 participants and 36 non-participants to the population study were found to have haematological malignancies. (3) Additionally, six cases were identified from the Cancer Registry. Totally, we thus identified 114 period prevalent cases, of which 86% had been reported to the Cancer Registry. Age-adjusted period prevalence of haematological malignancies was 4.7 per thousand in men and 2.9 per thousand in women. The prevalence increased with age. There were 84 cases with leukaemia, lymphoma, or multiple myeloma diagnosed at any time and still alive at 31 December 1996 (point prevalence 2.2 per thousand). Our estimated incidence of haematological malignancies did not differ significantly from that reported from the Cancer Registry. CONCLUSION: We found approximately the same rates of haematological malignancies as the Cancer Registry, although an underreporting of 14% to the Cancer Registry was detected. The point prevalence of leukaemia, lymphoma, and multiple myeloma was 2.2%.

Adult↗
PubMed1996

Occurrence of validating clinical findings in the hospital record for appendectomy, cholecystectomy and intervertebral disc excision patients: comparisons among hospitals and among surgeons.

This study examines the variation among 36 Pennsylvania hospitals, and the individual surgeons practicing in them, in the proportion of appendectomy, cholecystectomy and intervertebral disc excision patients with clinical findings in the hospital record that validate the need for surgery. Using admissions from January 1990 through June 1991, we performed logistic regressions on the probability of validating clinical findings controlling for patient age, sex, admission severity of illness, and Medicaid and Health Maintenance Organization membership. Our results show that hospitals, and surgeons, vary significantly in their validation rates for cholecystectomy and disc surgery and, to a lesser extent, appendectomy. We also found that increased procedure-specific volume at both the hospital and surgeon levels is not related to the odds of validating clinical findings. We define a future research agenda to investigate the reasons for the observed differences among hospitals and among surgeons.

Appendectomy↗
PubMedDate not supplied

[Pediatric cancer: analysis of hospital records].

OBJECTIVE: To analyze pediatric cancer hospital records regarding the occurrence of new cases; to verify the relation between sex, age, race, origin and the disease clinical extension; to describe the mortality of children with cancer; to explore the association of new cases with proposed demographic variables, disease clinical extension and vital status. METHODS: Observational, descriptive, longitudinal study in children up to 14 years old, from Santa Catarina. Three hundred and seventy-one new cases of cancer were treated in a regional reference outpatient clinic (1994-98) and recorded according to the International Classification of Childhood Cancer. Multiple Correspondence Analysis was applied to evaluate the categorical variables. RESULTS: Three-hundred and seventy-one new cases of cancer were recorded with constant distribution in each year. Cancer affected preschoolers (41.5%) and males (55.8%). Leukemia was observed in 36.6% of the cases. Non-localized stage on the diagnosis occurred in 55.7%. The death occurred in 55.7% of the cases with non-localized disease and 16.3% with localized disease. At the end of the study 58.8% of the children were alive. CONCLUSIONS: We observed more cases of cancer at pre-school age and among male subjects. Leukemia is the most frequent type of cancer. Non-localized disease predominates on the diagnosis. The death frequency is higher in the group with non-localized disease. There is direct association with non-localized disease, living vital status, school age, adolescent age, female, and for non-localized disease with death vital status, infant age, pre-school age and male.

English Abstract↗
PubMed1985

Changes in incidence and prognosis of ischaemic heart disease in Finland: a record linkage study of data on death certificates and hospital records for 1972 and 1981.

The components of the decline in mortality from ischaemic heart disease in Finland were studied by analysing the changes in incidence and prognosis between 1972 and 1981. Using personal identification numbers, hospital discharge records and death certificates were linked for all men and women aged 40-64. During this period mortality decreased 15.9% in men and 23.5% in women, incidence 14.2% in men and 19.3% in women, being greatest among 40-49 year olds living in urban areas, and case fatality 7.3% in men and 10.3% in women, owing primarily to a decrease in patients dying of ischaemic heart disease without being admitted to hospital; survival was also better among patients admitted to hospital. Factors explaining these changes remain unknown because data on risk factors and factors influencing prognosis are limited and largely ecological.

Adult↗
PubMed1998

Validity of self-reported diagnoses leading to hospitalization: a comparison of self-reports with hospital records in a prospective study of American adults.

The authors compared interview reports with hospitalization records of participants in a nationally representative survey to determine the accuracy of self-reports of ischemic heart disease, stroke, gallbladder disease, ulcers, cataract, hip fracture, colon polyps, and cancers of the colon, breast, prostate, and lung. The study cohort consisted of 10,523 participants from the First National Health and Nutrition Examination Survey in 1971-1975 who were aged 25-74 years at the baseline examination and who completed a follow-up interview in 1982-1984. Self-reports of hospitalization for breast cancer were confirmed as accurate for 100% of cases where a hospital record was available. Self-report accuracy was also high for ischemic heart disease (84%), cataract (83%), and hip fracture (81%); it was moderate for lung cancer (78%), prostate cancer (75%), gallbladder disease (74%), colon cancer (71%), and stroke (67%); but it was low for ulcers (54%) and colon polyps (32%). Some of the self-reports of ulcers (20%), hip fracture (9%), ischemic heart disease (7%), and stroke (7%) were found to reflect diagnoses of other conditions of anatomic proximity. Accuracy of self-reports improved with higher levels of education, but was not generally related to age, gender, race, alcohol use, or smoking. The results suggest that self-reports of some diseases can be taken as accurate, but self-reports of other conditions might require medical record verification in epidemiologic follow-up studies.

Adult↗
PubMed1997

[Classification of congenital heart diseases and surgical interventions in pediatric cardiology for the standardization of hospitalization records].

The utilization of DRGs for the evaluation of hospital activity requires the availability, on a current basis, of coded in-patient records (Hospital Discharge Form, SDO) with information concerning nosology of the patient and procedures performed. Consequently, the promotion of a standardized use of ICD.9 and ICD.9.CM code systems (International Classification of Diseases, 9th Revision, and International Classification of Diseases, 9th Revision, Clinical Modification) among clinicians is necessary. The National Research Council, Council Research Hospital for Cardiology and Cardiac Surgery (CREAS-IFC-CNR) has promoted the establishment of a permanent work group for the evaluation of the activity in the field of pediatric cardiology and cardiosurgery at a national level. In co-operation with two leading institution (AO "Bambino Gesù", Rome; AO "G. Gaslini", Genoa) an in-patient survey has been promoted including an overall revision of the ICD.9.CM code systems both for diagnosis and procedures in order to improve the standardization of data. Besides, the fitness of DRGs allocation by different codes has been judged. Some general and specific suggestions upon codes adequacy and DRGs identification have emerged from this study. The aim of this paper is to spread this preliminary standardization activity of the group as a contribution to the improvement of in-patient coded records quality.

Age Factors↗
PubMed1995

Analysis of hospital records in four African countries, 1975-1990, with emphasis on infectious diseases.

Detailed standardized annual reports are analysed for 17 rural hospitals in four African countries, with admission figures of 1.2 million patients (excluding deliveries) and more than 67,000 deaths over a period of 16 years. The countries involved are Zambia, Tanzania, Kenya and Ghana. Figures on admission, causes of death and clinical case fatality rates are presented per country and per 4-year calendar period for the most important infectious diseases. The number of admissions increased substantially in 3 of the 4 countries (50-77%) between 1976 and 1990, but admission rates (per 1,000 population per year) by much less (6-25%), indicating that a large part of the increase in the volume of services was due to population growth. The number of infectious disease admissions in Ghana, however, decreased by 12% and even more in terms of admission rates (by 42%). About 75% of all admissions in children below 15 years of age were due to infections and infection related diseases; for adults this figure was 31%. Malaria is the single most important infectious disease both in terms of admissions and as a cause of death; it has increased substantially in three of the four countries. Bacterial infections, in particular pneumonia, gastroenteritis, meningitis and tuberculosis, are also important diseases in terms of admissions and deaths. On the whole they have remained at more or less the same level in 1975-1990 in terms of both admissions and deaths. Immunizable diseases and measles, once important as causes of admissions and deaths, have declined in all countries. Case fatality rates vary substantially by type of disease. They are very high for tetanus (36.7-68.8%) and meningitis (14.7-43%), and low for malaria (0.6-4.6%). However, they vary considerably in the four countries included in the study and are usually lower in children than in adults. A need for detailed studies with good "standardized" hospital records is emphasized. Representative data are needed from all hospitals in a given catchment area, with defined diagnoses for diseases and details regarding age and sex. This kind of information is highly desirable for planning and operation of curative and preventive medical care in developing countries.

Adolescent↗