Effect of working status on tobacco, alcohol, and drug use among adolescents in urban area of Thailand.

To examine the relationship between working status and behavior of substance use such as tobacco, alcohol, and drug among adolescents, a survey of 215 students in the seventh to ninth grades was conducted in urban area of Thailand. The sample consisted of 100 workers (46.5%) and 115 nonworkers (53.5%). The percentages of participants with some experiences of smoking, drinking alcohol, and drug use were 17.2%, 48.8%, and 3.3%, respectively. The participants with experiences of smoking and drinking alcohol in the working group were significantly higher than in the nonworking group (P<0.001), while the relationship between working status and drug use was weaker than the other relationships between working status and tobacco or alcohol use. The backward logistic regression analysis was refined until it included three independent variables: tobacco use, alcohol use, and household income. On the other hand, it was found that working condition, including working hours and working at night, had little impact on smoking, drinking alcohol, and drug use. However, the type of job was significantly related to tobacco use (P<0.05) by binary analysis and multiple regression analysis. These findings suggest that employment of young adolescents in urban area of Thailand has an influence on smoking and drinking alcohol. Especially, working status probably affect smoking behavior among young adolescents in the urban area of Thailand.

Epidemiological survey of thyroid volume and iodine intake in schoolchildren, postpartum women and neonates living in Ulaan Baatar.

OBJECTIVE: Although endemic goiter had been recognized in most parts of the country, there are few available data on iodine-deficiency disorders (IDDs) in Mongolia. This study aimed to characterize the current status of iodine deficiency in Ulaan Baatar, Mongolia's capital city. DESIGN: Cross-sectional, observational study designed and performed according to the surveillance methods for IDD prevalence recommended by WHO/UNICEF/ICCIDD. SUBJECTS: A total of 505 schoolchildren aged 9-14 years (237 girls and 268 boys) and 138 mothers and their neonatal infants were selected to clinical and biochemical examination of the thyroid in 1996 and 1999. MEASUREMENTS: The anthropometric measurements, thyroid volume determined by ultrasound, blood TSH and FT4 concentrations, urinary iodine concentration and iodine content of salt consumed in households. RESULTS: Median thyroid volumes based on age were generally higher than those in iodine-sufficient areas and comparative to those reported in mild iodine-deficiency areas. Application of the updated WHO/ICCIDD reference values in iodine-replete European schoolchildren to the Mongolian children aged 10-12 years resulted in a goiter prevalence of 43.3%. The median value of urinary iodine concentration was 152.5 micro g/l (1.20 micro mol/l) and 40.3% of children excreted iodine below 100 micro g/l. Iodized salt (> 40 ppm) was consumed in 63.1% of households and in the children using noniodized salt their urinary iodine concentration was lower than those using ionized salt. In postpartum women, median thyroid volume and urinary iodine concentration were 11.3 ml and 107 micro g/l (0.84 micro mol/l), respectively, and 46% of women excreted less than 100 micro g/l (0.79 micro mol/l) of iodine. Of their neonates, 17.8% had elevated blood TSH levels (> 5 mU/l). In a 1999 survey, the goiter prevalence and ratio of low iodine excretion in schoolchildren decreased to 29.8% and 31.3%, respectively, while median urinary iodine concentration remain unchanged (160 micro g/l; 1.26 micro mol/l). CONCLUSION: The present study clearly indicates the presence of mild iodine deficiency in Mongolia. Enlarged thyroid gland and normal iodine excretion observed in schoolchildren living in Ulaan Baatar may result from the residual effects of iodine deficiency previously and presumably still exist in the city. Slight reduction in the rate of children with enlarged thyroid and low urinary iodine excretion after the onset of national iodinization programme suggests incomplete normalization of thyroid volume in children and that the correction of iodine deficiency is now in progress in Ulaan Baatar. Further nationwide surveys together with monitoring the progress of the national programme eliminating IDD are required in suburban areas surrounding the city and also in rural areas.

Impact of improvement of water supply on household economy in a squatter area of Manila.

To estimate the impact of the improvement of water supply. a comparative study on water collection and household expenditure on water was conducted between a former squatter community with an improved water supply (Leveriza: LE) and a typical squatter community with public water faucets (Maestranza: MA) in Manila, the Philippines. Data were collected from 201 structured household interviews and a focus group discussion among housewives in each community. To measure the time spent collecting water, observations of private and public water faucets were conducted. The residents in LE enjoyed significantly larger quantities of water from private water connections than in MA, where only three public water faucets were available as a water source. Conversely, the unit price of water in LE was much lower than in MA. In LE, 72.1% of the households started working for more income using time saved through the improvement of water supply and the proportion of the households under the poverty threshold was reduced from 55.6% to 29.9%. In MA, 68.6% of the households expressed their willingness to work for more income when time spent collecting water was saved. It would be possible for MA to reduce the proportion of the households under the poverty threshold through the improvement of the water supply. The results of the study indicated that the improvement of water supply would possibly encourage urban slum residents to increase their household incomes through reallocating time saved to income-generating activities. The underserved residents spent more money for less water compared to those with access to private water connections. In MA, it took 3-4 h, on average, to complete one water collecting task, even though the nearest public water faucet was within 100 m of any housing unit. This suggests that the definition of accessibility to safe water be reconsidered when discussing the urban poor.

Drug utilisation and self-medication in rural communities in Vietnam.

Reportedly 40-60% of people in Vietnam depend on self-medication. To assess the current situation of self-medication practices as compared with medication given by health professionals in rural areas in Vietnam, we conducted a cross sectional survey at household level. A total of 505 women with at least one child younger than 5 years of age were interviewed in their homes about their drug utilisation practices and attitudes toward medication, by using structured questionnaires. Of the 505 households, 138 stocked drugs for anticipated illness in the future. A total of 96 different antibiotics (in terms of generic type) were kept at 76 households. These antibiotics were kept mainly for coughs and diarrhoea. The self-medication group was twice as likely to use antibiotics than the other group. In addition, self-medication practice was increased when a mother kept medicines in the house. This study revealed that mistaken beliefs about medicines and undesirable attitudes toward medication were prevalent. Mothers used antibiotics as if such drugs were panaceas. In this context, there was insufficient public health education, no control over pharmaceutical promotion, and no efficient drug policy and regulation. More attention should be given to consumers and patients as the ultimate users of drugs so that they can access accurate information, assess the reliability of information and ask necessary questions.