Impact of Improved Cooking Stove on Maternal Health in Rural Bangladesh: A Quasi-Experimental Study

Introduction: Two-thirds of all households in developing countries depend on unprocessed biomass fuel for cooking. Traditional stoves have poor combustion capacity which produce heavy smoke and numerous  harmful pollutants. Switching to Improved Cooking Stove (ICS), a well-designed earthen made stove equipped with a chimney could be beneficial for health. The aim of this study was to assess the efficacy of ICS on maternal health in rural areas of Bangladesh. Methods: A quasi-experimental design was adopted to conduct the study. This study selected 150 Households from 5 villages (intervention) and 150 Households from 2 villages (control) from the Manikgonj District of Bangladesh during January 1, 2012 to July 30, 2012. Differences between control and intervention group were examined by applying t-test or one-way analysis of variance (ANOVA). The conventional cut-off value of 0.05 was taken as statistical significance. Stata (version 13) was used to do the analysis. Results: Most of the respondents (62%) were less than 30 years of age. About 94% participants resided in tin-shaded houses, and 51% kitchens were small. After the intervention period, the measured mean concentrations of Particulate Matter (PM2.5) for the intervention and control group was 259 µg/m3 and 1285 µg/m3, respectively (p<0.05). However, lung function test (LFT) did not reveal significant differences between the two groups (p>0.05). Conclusion: ICS reduced the incidence of respiratory illness among the intervention group, however, did not demonstrate significant changes in LFT during the six months of the follow-up period. Therefore, this study found ICS might have the potential to be used to improve the maternal health in rural Bangladesh. However, more longitudinal investigations are expected to demonstrate the efficacy and impact of ICS on maternal health to support the statement

Smoking behaviour among Tuberculosis relapse cases attended at tertiary level hospitals in Dhaka city of Bangladesh

This case-control study was conducted in two tertiary level hospitals in Dhaka City to determine the association between smoking habit and relapse tuberculosis (TB). The study population was registered adult patients who got complete treatment within 2-5 years. Relapse and non-relapse TB cases are listed serially in hospital record books. The relapse cases were selected randomly as case group and age-matched (± 2years) cured patients with the respondent of case group were included as control groups. A total of 170 respondents in each case and control groups were selected with 80% power and assuming 14% differences between cases and controls. The selected respondents who visited the respective hospitals on the scheduled day were interviewed face to face for data collection. Mean age of the participants was 39.7±11.56 years. Significantly (χ2=20.767; p=0.000) a lower proportion of the relapse cases were found to get complete TB treatment 3 years before in comparison to that of control group. Family size more than five, education of secondary level, two earning members in the family, past smoker, smoked more than 10 cigarettes per day and exposure to second hand smoking were found to be significantly associated with higher proportion of relapse cases. Regression analysis revealed that exposure to second-hand smoking and past smokers were 2.4 and 2.0 times more likely to develop relapse TB respectively. Tuberculosis relapse case was more likely to develop within three years of the complete TB treatment. Past smoking habit and exposure to second-hand smoking had the strongest likelihood of developing more TB relapse cases

Post-COVID-19 complications in home and hospital-based care: A study from Dhaka city, Bangladesh

A cross-sectional survey was undertaken to understand the management patterns and post-COVID-19 complications among hospital and home-treated participants. Retrospective information was collected from four COVID-19 dedicated hospitals and four selected community settings. Using probability proportional sampling, 925 participants were selected. Data were collected using a semi-structured questionnaire. Bivariate and multivariate logistic regression analysis and the exact chi-square tests were utilized to analyze the association between the studied variables. A total of 659 participants responded (response rate 70.93%); 375 from hospitals and 284 from communities. About 80% of participants were mild cases, 75% were treated at home, and 65% of hospital-treated participants were referred after home treatment. Participants treated at home-to hospital and directly in the hospital had 1.64 and 3.38 times longer recovery time respectively than what home-based participants had. A significant increasing trend (p < 0.001) of co-morbidities was found among referred and hospital treated participants. Age, level of education, physical exercise, practicing preventive measures, exposure to sunlight, and intake of carbohydrate, additional liquid, food supplements, and avoidance of junk foods were significantly associated with place of treatment. Post-COVID-19 difficulties of all factors were statistically significant for home treatment participants, whilst only depression (p = 0.026), chest pain (p = 0.017), and digestive disorders (p = 0.047) were significant (p < 0.05) for hospital treated participants. The outcomes from this study provide insight into a range of post-COVID-19 difficulties relating to at home and in hospital treatment participants. There are clear differences in the complications experienced, many of which are statistically significant. The health care professionals, the community people and COVID-19 survivors will be benefitted from the study findings, and the policy level people may use the information for designing health education program on post COVID-19 complications

Blood Lead Levels and Health Problems of Lead Acid Battery Workers in Bangladesh

Introduction. Use of lead acid battery (LAB) in Bangladesh has risen with sharp rise of motor vehicles. As result, manufacture of LAB is increasing. Most of the lead used by these industries comes from recycling of LAB. Workers in LAB industry are at risk of exposure lead and thus development of lead toxicity. Objective. The objective of this study was to measure the blood lead concentration and to assess the magnitude of health problems attributable to lead toxicity among the LAB manufacturing workers. Methods. A cross-sectional study was conducted among the workers of LAB manufacturing industries located in Dhaka city. Result. Mean blood lead level (BLL) among the workers was found to be high. They were found to be suffering from a number of illnesses attributable to lead toxicity. The common illnesses were frequent headache, numbness of the limbs, colic pain, nausea, tremor, and lead line on the gum. High BLL was also found to be related to hypertension and anemia of the workers. Conclusion. High BLL and illnesses attributable to lead toxicity were prevalent amongst workers of the LAB manufacturing industries, and this requires attention especially in terms of occupational hygiene and safety

Arsenic-safe drinking water and antioxidants for the management of arsenicosis patients

The role of arsenic-safe drinking water and antioxidants in the management of arsenicosis patients were observed. Two hundred and fifty patients of arsenicosis from an arsenic-affected area of Bangladesh were included and divided into five groups based on the source of drinking water (green- or red-marked tube well) and intake of antioxidants (vitamin A, C and E). Melanosis improved in 43 patients of the group who took arsenic-safe drinking water from green-marked tube well and antioxidants regularly. Patients of the group who took green-marked tube well water regularly but not the antioxidant showed improvement in melanosis in 22 cases. The respondents who were using red-marked tube well water and antioxidants, only two of them improved; and all other respondents either deteriorated or did not improve. The respondents who were using red-marked tube well water but not the antioxidant, none did show any improvement of their illness. The respondents who took antioxidants irregularly and had irregular intake of safe water, were not considered to compare the prognosis of skin lesions. Regarding keratosis, the respondents who took green-marked tube well water regularly and antioxidant regularly, 8 of them improved, 1 case didn’t change; while the respondents who took green-marked tube well water regularly but not the antioxidant, 8 cases didn’t improve much but majority of them remain unchanged. Among the respondents of other groups, keratosis deteriorated. This study suggests that both arsenic-safe drinking water and use of antioxidants gave good result in improvement of the arsenicosis