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Biomedical subjects

K Anand

Publications and source records attributed to K Anand.

At least 37 records · Page 2Linked to original sources

Economic evaluation of water iodization program in Thailand.

In Thailand, iodine deficiency disorders (IDD) are endemic in 57 out of 75 provinces with an estimated 15 million people at risk of IDD. A three pronged control program with iodized salt, iodized water and iodized oil capsules is being implemented. The water iodization program is both school based and household based. In the household, the residents are given iodine solution, two drops of which is to be added to 10 l of drinking water. In the schools, in addition to this method, an iodinator is used. This releases a fixed amount of iodine into the drinking water. This study examines the cost of the water iodization program in Thailand for the year 1996 in terms of cost per beneficiary, cost per microg iodine consumed daily and cost per goiter person years averted. We used a discount rate of 5%. Field visit and interviews of health personnel from Ministry to village level were conducted to gather primary data. Review of existing papers and reports of the Department of Health, Government of Thailand was done for secondary data. The costs included the capital cost of equipments, initial training and the recurrent costs of potassium iodate, proportional salaries of personnel involved, monitoring and communication activities. The cost per beneficiary of school based iodinator method (US$ 0.72) and school based drop method (US$ 0.64) were similar and much higher than the household based approach (US$ 0.12). The cost per microg of iodine consumed daily was ten times higher in the school based approach (US$ 0.01) compared to the household approach (US$ 0.001). The cost per goiter case averted for the whole strategy of water iodization was US$ 194.50. Water iodization appears to be a low cost intervention. However, the need for behavioral modification raises the issue of long term sustainability.

Child↗

Effect of highly active antiretroviral therapy on the incidence of HIV-associated malignancies at an urban medical center.

The widespread use of highly active antiretroviral therapy (HAART) since 1996 has led to a substantial decline in morbidity and mortality in patients infected with HIV, although its effect on the incidence of HIV-associated malignancies is unknown. We retrospectively reviewed the annual number of outpatient visits to our HIV clinic, inpatient admissions for HIV disease, and first admissions for patients with cancer and HIV disease at our center between 1990 and 1997. Between 1990 and 1995, there was a progressive increase in the annual number of admissions for HIV disease and HIV-associated cancers that paralleled the increasing HIV clinic volume. In 1997, however, the annual number of first admissions for Kaposi's sarcoma (KS) and non-Hodgkin's lymphoma compared with 1995 decreased by 36% and 63%, respectively, despite a continued increase in the annual number of HIV clinic visits. Similar declines were also noted in the number of new cases of biopsy-confirmed KS and primary central nervous system (CNS) lymphoma. In contrast, there was no decrease in the number of first admissions for patients with HIV infection and other cancers not typically associated with HIV infection. These findings suggest a declining incidence of HIV-associated malignancies since the introduction of HAART.

AIDS-Related Opportunistic Infections↗

Impact of HIV/AIDS on the national economy of India.

BACKGROUND INFORMATION: Human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) is a major public health problem in India. In general, it affects mainly young people who are at their most productive part of life. Despite initial fears that AIDS will be disastrous for the economy, recent experience and estimations have shown that there is a need for reappraisal of its economic impact on society. RESEARCH QUESTION: From the viewpoint of the society of India, what is the total cost and equivalent annual cost of HIV infections for the period 1986-1995 (10 years) in India? METHODS: Type of analysis: Cost-descriptive based on predictive modelling cohort analysis using human capital approach. A discount rate of 5% was used. The cost of HIV infections include (i) loss of productivity among HIV patients due to sickness and death, (ii) productivity loss due to caregivers of AIDS patients, and (iii) cost of management of AIDS patients. To estimate the loss of productivity due to premature death attributable to AIDS, a life table approach using two cohorts, one with and one without HIV/AIDS infection at assumed rates was used. The demographic data of 1991 census were used. The difference in the person-years lived in the two scenarios gave the person-years lost due to HIV/AIDS. This was calculated separately for rural and urban areas. To convert this to monetary terms, national per capita income for 1992-93 of Rs. 5529 was used. The data on the days of inpatient care and the cost of management of AIDS patients were based on currently available data and 'expert opinion'. We analysed, using three different sets of assumptions for determination, the low, medium and high estimates of the impact of HIV/AIDS in India. Some of the costs were not included in the present analysis: (i) use of antiviral AZT, (ii) cost of retraining of new workforce, (iii) cost of strengthening of health care system, (iv) cost of research and development, (v) cost of communication activities, (vi) cost of prevention of vertical transmission, and (vii) the intangible cost of pain and suffering to the patients and their families. RESULTS: The total cumulative number of HIV-infected persons in India until 1995 was estimated to be 1.5 million (low estimate), 2.5 million (medium estimate) and 4.5 million (high estimate). The estimated total annual cost (in billion Rupees) of HIV/AIDS in India under low, medium and high assumptions was 6.73, 20.16 and 59.19, respectively. Cost of treatment of AIDS and loss in productivity were the two major components of the cost. CONCLUSIONS: The estimated annual cost of HIV/AIDS appears to be about 1% of the GDP of India if based on high assumptions. However, as mentioned earlier, all costs of HIV have not been taken into account. Its significance has to be assessed in the context of annual growth of GDP (3.5%) and cost of other major diseases in India.

AIDS Serodiagnosis↗

Clinical case definition of malaria at a secondary level hospital in northern India.

Malaria has re-emerged as a major public health problem in India. At present, under the National guidelines; all fevers are presumed to be due to malaria and chloroquine is given as presumptive treatment. This results in overtreatment. We did a pilot study to see whether some clinical predictors of malaria could be identified in the Indian setting. This case control study was done in a secondary level hospital. All those with fever who were smear positive for malaria were enrolled as cases and other patients fever who were smear negative for malaria served as the controls. All the factors under study were ascertained by a history or detailed clinical examination. A total of 41 cases and 95 controls were enrolled. Of the 41 cases, 35 were positive for P. vivax and six were positive for P. falciparum. After multivariate analysis, only splenomegaly (OR = 2.11; 95% CI = 1.27-3.50) and pallor (OR = 2.01; 95% CI = 1.16-3.48) were significantly associated with malaria. It appears that history of fever along with one or both of these two signs can be a useful predictor of malaria in a secondary level hospital in India. The utility and feasibility of a similar approach in a field setting needs to be studied further.

Analysis of Variance↗

Use of mid-arm and chest circumferences to predict birth weight in rural north India.

STUDY OBJECTIVE: To determine the most appropriate surrogate indicator and its cut off point for identifying low birthweight babies in northern India. STUDY SETTING: A secondary level hospital at Ballabgarh. The patients were from nearby rural and urban areas and mostly belonged to lower and middle socioeconomic strata. PARTICIPANTS: These comprised 733 singleton newborns delivered in the hospital between April and December 1991. DESIGN: Birth weight, arm circumference, and chest circumference were measured in all the newborns. Different cut off points for each index were identified and their validity was tested. Based on the regression equations, a simple chart was drawn up and was used to predict weights for different arm and chest circumferences in the hospital and community settings. MAIN RESULTS: Cut off points for arm and chest circumferences of 8.5 cm and 29.5 cm respectively gave a sensitivity and specificity of around 80%. When the chart based on the regression equations was tested in both the hospital and the community, chest circumference was found to be the better of the two indicators. CONCLUSION: Chest circumference seems to be the most appropriate surrogate measure for birth weight. Cut off points of 29.5 cm and 27.5 cm seem to be satisfactory for predicting birth weight below 2500 g and 1800 g respectively. The birthweight prediction card using chest circumference was effective in predicting birth weight.

Birth Weight↗

A role for nongovernmental organizations in monitoring the iodine content of salt in northern India.

The feasibility of using nongovernmental organizations (NGOs) to monitor the iodine content of salt was studied in Uttar Pradesh, northern India, where iodine-deficiency disorders (IDDs) are endemic. Three NGOs already involved in health and development activities in the Gorakhpur, Varanasi, and Dehradun regions collected salt samples monthly from households and shops in selected villages over a 6-month period. A total of 4001 samples were analysed at regional laboratories by trained personnel using a standard protocol; 10% of the samples were sent to a central laboratory for external quality control. The iodine content lay in the range 0-95 mg/kg of salt; it was particularly low in the Gorakhpur and Varanasi regions, where over 80% of samples contained less than the minimum recommended level of 15 mg/kg; 37% of samples were in this category in the Dehradun region. Regular monitoring of the iodine content of salt at the consumer level is essential for the elimination of IDDs, and there is a need to improve awareness of this at all levels. NGOs can play a valuable role in both of these respects.

Humans↗

Are diarrheal incidence and malnutrition related in under five children? A longitudinal study in an area of poor sanitary conditions.

This study was conducted in Atali and Garkhera villages of Faridabad district of Haryana to assess the relationship between diarrheal incidence and malnutrition. Two hundred and fifty children in the age group of 6-47 months were followed up for one year from June 1988. History of diarrheal episodes was ascertained by fortnightly home visits. Nutritional status (weight for age) of the children was assessed at the beginning of the study and at every four monthly interval. The mean diarrheal incidence was 2.88 +/- 1.28 episodes per child year. The pre-valence of moderate to severe malnutrition in the children was 35% out of which 8.8% were severely malnourished. Although severely malnourished children had 0.56 more episodes of diarrhea in a year compared to normally nourished, the difference was not statistically significant. Similarly, number of episodes of diarrhea also did not affect the subsequent nutritional status of the children. The possible reason for this could be that in areas of poor sanitary conditions, nutritional status may not play an important role in increasing the susceptibility of children to diarrhea.

Child, Preschool↗

Bile salt malabsorption in pancreatic insufficiency secondary to alcoholic pancreatitis.

Twenty patients with exocrine pancreatic insufficiency secondary to alcohol abuse were studied for the presence of bile salt malabsorption. Fecal bile salts and fecal fat excretion were determined in 15 patients receiving pancreatic enzyme therapy, not receiving enzyme therapy, and on a regimen of pancreatic enzymes plus cimetidine. Serum bile salt levels were measured during fasting and postprandial conditions both during enzyme therapy and after it was stopped in 8 cases. In addition, 5 patients underwent [14C]cholylglycine breath testing during and after discontinuation of enzyme therapy. The fecal bile salt excretion varied between 610 and 3460 mg/day in the untreated patients. Treatment with pancreatic enzymes was associated with significant (p less than 0.05) reduction in fecal bile salt and fecal fat excretion. Cimetidine therapy in addition to enzyme therapy further reduced steatorrhea but failed to alter bile salt excretion significantly. Serum cholylglycine level showed significant (p less than 0.05) postprandial increase in patients receiving enzyme therapy, suggesting improved bile salt absorption. These data suggest a wide range of bile salt malabsorption in alcoholic patients with pancreatic insufficiency, which improves with pancreatic enzyme therapy.

Adult↗

Prevalence of tobacco use among school and college going adolescents of Haryana.

The prevalence of tobacco use among the school and college going adolescents of Haryana, a state in northern India was studied. 1130 male and 256 female students were given a self administered questionnaire regarding tobacco use. 160 (14.2%) male and 6 (2.3%) female students reported to have smoked at any time in the past. The prevalence of current smoking (defined as smoked in last one week) was only 7.1%. Of the 166 ever smokers, 44% had started this habit between 10 to 15 years of age. There was no rural-urban difference. Univariate analysis showed, male sex, age > 15 years, smoking by father, mother, sister, and friends to be significantly associated with smoking by the adolescent children. By logistic regression, only smoking by friend (O.R. 6.14), brother (O.R. 1.74) and male sex (O.R. 4.67) were found to be significantly associated with smoking by adolescent children. About 8% of the smokers were spending more than Rs. 10 per week on this habit. Both the smokers and non smokers were well aware of the adverse health effects of smoking indicating that mere provision of information on hazards of smoking may not be enough to reduce the prevalence of smoking. A more concerted effort for inducing behavioural change including legislation, communication is called for the fight against smoking.

Adolescent↗

Using government schools to monitor iodine content of salt at household level in Delhi.

The Government had banned the sale of un-iodized salt in Delhi in 1989 as a step towards elimination of iodine deficiency disorders. The present study was done to detect the presence of iodine in salt samples every month from households of the students of government middle schools in Delhi using spot testing kits. One section each, from the classes six to eight of the thirty selected middle schools was chosen randomly. The children were asked to bring salt from their homes on a prefixed day. The salt samples were examined for the presence of iodine by a spot testing kit. This was repeated every month during the study (August '94 to February '95) among the same students in each school. A total of 16,596 salt samples were collected. Of this 12,736 (76.7%) tested positive for iodine and the rest (23.3%) of the salt samples did not contain iodine. The proportion of children who brought the salt samples varied between 53% to 72% in different months. As the study progressed, the trend showed more samples being tested positive for iodine. The differences in districts were not significant. Un-iodized salt thus still continues to be available in the households of the government school children of the National Capital Territory of Delhi. The use of rapid testing kits in schools is a practical and feasible way to enhance the monitoring activities of the government.

Community Medicine↗