Hygiene behaviour in rural Nicaragua in relation to diarrhoea. (1/201)

BACKGROUND: Childhood diarrhoea is a leading cause of morbidity and mortality in Nicaragua. Amongst the risk factors for its transmission are 'poor' hygiene practices. We investigated the effect of a large number of hygiene practices on diarrhoeal disease in children aged <2 years and validated the technique of direct observation of hygiene behaviour. METHODS: A prospective follow-up study was carried out in a rural zone of Nicaragua. From the database of a previously conducted case-control study on water and sanitation 172 families were recruited, half of which had experienced a higher than expected rate of diarrhoea in their children and the other half a lower rate. Hygiene behaviour was observed over two mornings and diarrhoea incidence was recorded with a calendar, filled out by the mother, and collected every week for 5 months. RESULTS: Of 46 'good' practices studied, 39 were associated with a lower risk of diarrhoea, five were unrelated and only for two a higher risk was observed. Washing of hands, domestic cleanliness (kitchen, living room, yard) and the use of a diaper/underclothes by the child had the strongest protective effect. Schooling (>3 years of primary school) and better economic position (possession of a radio) had a positive influence on general hygiene behaviour, education having a slightly stronger effect when a radio was present. Individual hygiene behaviour appeared to be highly variable in contrast with the consistent behaviour of the community as a whole. Feasible and appropriate indicators of hygiene behaviour were found to be domestic cleanliness and the use of a diaper or underclothes by the child. CONCLUSION: A consistent relationship between almost all hygiene practices and diarrhoea was detected, more schooling producing better hygiene behaviour. The high variability of hygiene behaviour at the individual level requires repeated observations (at least two) before and after the hygiene education in the event one wants to measure the impact of the campaign on the individual.  (+info)

The privatization of health care in three Latin American social security systems. (2/201)

Most Latin American social security institutes are direct providers of medical care services to their beneficiaries. As many of the institutes have developed serious financial problems over the course of the last decade and a half, they have come under increasing attack for (a) exacerbating inequalities in access to and use of health care, (b) further heightening the geographic overconcentration of services, (c) focusing a disproportionate amount of resources on high technology, curative care to the near total exclusion of primary health care, and (d) being administratively top heavy and, more generally, inefficient. In the past few years, many Latin American countries have begun searching for methods to ameliorate these problems. This paper analyzes three recent efforts, all of which involve some degree of privatization: (1) El Salvador's partial privatization of specialty physician outpatient consultations, (2) Peru's minor surgery and its decentralized ambulatory care programme, and (3) Nicaragua's "administrative services only' approach wherein social security beneficiaries choose to join a certified public or private provider organization for one year, and, on behalf of the individual, social security pays the organization a fixed, annual, per capita fee to provide all health care for the enrollee. The paper also identifies political and technical considerations, as well as health care market characteristics that have shaped these efforts and that condition their likelihood of success, including: the size, composition, level of capacity utilization, degree of organization and geographic distribution of private sector resources; relative prices in the private vis-a-vis the public sector; and the size and nature of the private health insurance market. Other Latin American countries would do well to examine these factors and characteristics before embarking on efforts to reform their own social security health care delivery systems.  (+info)

Fertility and infant mortality trends in Nicaragua 1964-1993. The role of women's education. (3/201)

OBJECTIVES: To assess trends in fertility and infant mortality rates (IMR) in Leon, Nicaragua, and to examine the effect of women's education on these trends during 1964-1993, a period of rapid social change. DESIGN: Cross sectional survey, based on random cluster sampling. A retrospective questionnaire on reproductive events was used. SETTING: The municipality of Leon, which is the second largest city in Nicaragua, with a total population of 195,000 inhabitants. SUBJECTS: 10,867 women aged 15-49 years, corresponding to 176,281 person years of reproductive life. Their children contributed 22,899 person years under 12 months of age to the IMR analysis. MAIN OUTCOME MEASURES: Fertility rate (number of pregnancies per 1000 person years) for specific age groups and calendar periods, total fertility rate, and IMR. RESULTS: Fertility rates and IMR declined in parallel, especially during the 1980s. However, education specific fertility rates did not decline, but the proportion of educated young women increased from 20% to 46%. This had also an impact on the overall IMR decline, although IMR reduction mainly took place among infants of women without formal education, decreasing from 118 to 69 per 1000 during the observation period. CONCLUSIONS: In this demographic transition over three decades, fertility and IMR declined simultaneously. The decreasing trend in fertility was mainly explained by an increase in women's education, while the IMR decline seemed to be the result of health interventions, specially targeted to poorer groups of women and their infants. Thus, social differences in fertility rates remained unchanged, while equity in chances of child survival increased.  (+info)

Widespread atypical cutaneous Leishmaniasis caused by Leishmania (L.) Chagasi in Nicaragua. (4/201)

Leishmania chagasi, the causative agent of visceral leishmaniasis (VL) in the Americas, has recently been associated with atypical cutaneous leishmaniasis (ACL) in Central America; however, little comprehensive information about this disease is available. Clinical, epidemiologic, and parasitologic characteristics of 252 ACL cases and 44 VL cases in Nicaragua were analyzed. Visceral leishmaniasis is primarily associated with malnourished children less than five years of age, whereas ACL is found predominantly in children greater than five years of age and young adults. Genetically similar parasites are associated with both disease manifestations. The sand fly Lutzomyia evansi, in addition to Lu. longipalpis, may be involved in transmission of L. chagasi to humans. Our results indicate that ACL is more prevalent than previously thought, affecting up to 10% of a local population. The fact that the same parasite appears to cause both ACL and the potentially fatal visceral disease suggests that the host immune response is critical in determining the outcome of L. chagasi infection. The public health implications of the wide-spread presence of L. chagasi are discussed.  (+info)

The effect of poverty, social inequity, and maternal education on infant mortality in Nicaragua, 1988-1993. (5/201)

OBJECTIVES: This study assessed the effect of poverty and social inequity on infant mortality risks in Nicaragua from 1988 to 1993 and the preventive role of maternal education. METHODS: A cohort analysis of infant survival, based on reproductive histories of a representative sample of 10,867 women aged 15 to 49 years in Leon, Nicaragua, was conducted. A total of 7073 infants were studied; 342 deaths occurred during 6394 infant-years of follow-up. Outcome measures were infant mortality rate (IMR) and relative mortality risks for different groups. RESULTS: IMR was 50 per 1000 live births. Poverty, expressed as unsatisfied basic needs (UBN) of the household, increased the risk of infant death (adjusted relative risk [RR] = 1.49; 95% confidence interval [CI] = 1.15, 1.92). Social inequity, expressed as the contrast between the household UBN and the predominant UBN of the neighborhood, further increased the risk (adjusted RR = 1.74; 95% CI = 1.12, 2.71). A protective effect of the mother's educational level was seen only in poor households. CONCLUSIONS: Apart from absolute level of poverty, social inequity may be an independent risk factor for infant mortality in a low-income country. In poor households, female education may contribute to preventing infant mortality.  (+info)

Application of molecular typing techniques in the 1998 dengue epidemic in Nicaragua. (6/201)

This report presents the results of applying the reverse transcriptase-polymerase chain reaction (RT-PCR) to the analysis of clinical specimens during the 1998 dengue epidemic in Nicaragua. The RT-PCR was validated through comparison with viral isolation, resulting in a sensitivity of 100% and a specificity of 90%. In-country application of the RT-PCR permitted the rapid identification of dengue-3 virus as the cause of the epidemic at the beginning of 1998 and the detection of the reintroduction of dengue-2 virus in the middle of the year. Nineteen isolates of dengue-3 and one of dengue-2 were characterized using the restriction site-specific (RSS)-PCR technique. This showed that the dengue-3 strain belonged to the "Sri Lanka" subtype and that the dengue-2 strain belonged to the "Jamaica" subtype, both of which have been associated with hemorrhagic dengue in the Americas. The application of these simple PCR-based strain typing methods in a country endemic for dengue virus infections can help to characterize the transmission dynamics of this important emerging infectious disease problem and provide this information to local health authorities in a timely manner so that appropriate control measures can be implemented.  (+info)

Prospective validation of a standardized questionnaire for estimating childhood mortality and morbidity due to pneumonia and diarrhoea. (7/201)

This paper reports the validation of a 'best-judgement' standardised questionnaire using guidelines and algorithms developed by an expert working group conducted in Nicaragua between 1995 and 1997. Prospective hospital data, including standardised medical recording of selected signs and symptoms, laboratory and radiographic test results and physician diagnoses were collected for children < 5 years admitted with any serious life-threatening condition in 3 study hospitals. The mothers or caregivers of the children were later traced and interviewed using the 'best-judgement' questionnaire. Interviews were completed 1-22 months after admission to hospital for 1115 children (400 who died during the stay in hospital and 715 who were discharged alive). The cause of death or admission to hospital was determined by an expert algorithm applied to hospital data. A similar procedure was used to derive the cause using the answers to questions from interviews. Hospital causes were compared with interview causes and sensitivity and specificity calculated, together with the estimated cause-specific fraction for diarrhoea and pneumonia. Multiple diagnoses were allowed; 378 children in the sample (104 deaths, 274 survivors) had a reference diagnosis of diarrhoeal illness, and 506 (168 deaths, 338 survivors) a reference diagnosis of pneumonia. When results for deaths and survivors in all age groups were combined, the expert algorithms had sensitivity between 86% and 88% and specificity between 81% and 83% for any diarrhoeal illness; and sensitivity between 74% and 87% and specificity between 37% and 72% for pneumonia. Algorithms tested in previous validation studies were also applied to data obtained in this study, and the results are compared. Despite less than perfect sensitivity and specificity, reasonably accurate estimates of the cause-specific mortality and morbidity fractions for diarrhoea were obtained, although the accuracy of estimates in other settings using the same instrument will depend on the true cause-specific fraction in those settings. The algorithms tested for pneumonia did not produce accurate estimates of the cause-specific fraction, and are not recommended for use in community settings.  (+info)

From state to market: the Nicaraguan labour market for health personnel. (8/201)

Few countries in Latin America have experienced in such a short period the shift from a socialist government and centrally planned economy to a liberal market economy as Nicaragua. The impact of such a change in the health field has been supported by the quest for reform of the health system and the involvement of external financial agencies aimed at leading the process. However, this change has not been reflected in the planning of human resources for health. Trends in education reflect the policies of past decades. The Ministry of Health is the main employer of health personnel in the country, but in recent years its capacity to recruit new personnel has diminished. Currently, various categories of health personnel are looking for new opportunities in a changing labour environment where new actors are appearing and claiming an influential role. It may take more than political willingness from the government to redefine the new priorities in the field of human resources for health and subsequently turn it into positive action.  (+info)

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