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BMC Public Health | 2010

Role of risk and protective factors in risky sexual behavior among high school students in Cambodia.

Siyan Yi; Krishna C. Poudel; Junko Yasuoka; Paula H. Palmer; Songky Yi; Masamine Jimba

BackgroundIn many developing countries, adolescents have become increasingly prone to engage in habitual risky sexual behavior such as early sexual initiation and unprotected sex. The objective of this study was to identify the operation of risk and protective factors in individual, family, peer, school, and community domains in predicting risky sexual behavior among male and female adolescents in Cambodia.MethodsFrom October 2007 to January 2008, we collected data from 1,049 students aged 14 to 20 years. Risky sexual behavior was measured using a scale consisting of four items: sexual intercourse during the past three months, number of sex partners during the past three months, age at first experience of sexual intercourse, and use of condom in last sexual intercourse. The risk factors examined included substance use, depression, peer delinquency, family violence, and community violence. Studied protective factors included family support function, frequency of family dinner, and school attachment.ResultsOf the 1,049 students surveyed, 12.7% reported sexual intercourse during the past three months. Out of those sexually active students, 34.6% reported having two or more sex partners over the same period, and 52.6% did not use a condom during their last sexual intercourse. After controlling for other covariates, a higher likelihood of risky sexual behavior remained significantly associated among male participants with higher levels of substance use, higher levels of peer delinquency, and higher family income. In contrast, risky sexual behavior did not retain its associations with any of the measured protective factors among male participants. Among female participants, a higher likelihood of risky sexual behavior remained significantly associated with higher levels of substance use, higher levels of community-violence witnessing, and lower levels of family support.ConclusionsThe findings suggest the importance of considering gender-related differences in the effects of risk and protective factors when designing and implementing prevention programs. In interventions for both male and female adolescents, prevention of substance use and risky sexual behavior should be integrated. For boys, efforts should focus on the reduction of peer delinquency, while, for girls, improvement of family support should be emphasized.


Nutrition Journal | 2013

Effectiveness of nutrition training of health workers toward improving caregivers’ feeding practices for children aged six months to two years: a systematic review

Bruno F. Sunguya; Krishna C. Poudel; Linda B. Mlunde; Prakash Shakya; David P Urassa; Masamine Jimba; Junko Yasuoka

BackgroundNutrition training of health workers can help to reduce child undernutrition. Specifically, trained health workers might contribute to this end through frequent nutrition counseling of caregivers. This may improve child-feeding practices and thus reduce the risk of undernutrition among children of counseled caregivers. Although studies have shown varied impacts of health workers’ nutrition training on child feeding practices, no systematic review of the effectiveness of such intervention has yet been reported. Therefore, we conducted this study to examine the effectiveness of nutrition training for health workers on child feeding practices including feeding frequency, energy intake, and dietary diversity among children aged six months to two years.MethodsWe searched the literature for published randomized controlled trials (RCTs) and cluster RCTs using medical databases including PubMed/MEDLINE, CINAHL, EMBASE, and ISI Web of Knowledge, and through WHO regional databases. Our intervention of interest was nutrition training of health workers. We pooled the results of the selected trials, evaluated them using the Grades of Recommendation, Assessment, Development, and Evaluation (GRADE) criteria, and calculated the overall effect size of the intervention in meta-analyses.ResultsTen RCTs and cluster RCTs out of 4757 retrieved articles were eligible for final analyses. Overall, health workers’ nutrition training improved daily energy intake of children between six months and two years of age. The pooled evidence from the three studies reporting mean energy intake per day revealed a standardized mean difference (SMD) of 0.76, 95% CI (0.63-0.88). For the two studies with median energy intake SMD was 1.06 (95% CI 0.87-1.24). Health workers’ nutrition training also improved feeding frequency among children aged six months to two years. The pooled evidence from the three studies reporting mean feeding frequency showed an SMD of 0.48 (95% CI 0.38-0.58). Regarding dietary diversity, children in intervention groups were more likely to consume more diverse diets compared to their counterparts.Conclusion and recommendationsNutrition training for health workers can improve feeding frequency, energy intake, and dietary diversity of children aged six months to two years. Scaling up of nutrition training for health workers presents a potential entry point to improve nutrition status among children.


Aids Care-psychological and Socio-medical Aspects of Aids\/hiv | 2011

Perceived social support and the psychological well-being of AIDS orphans in urban Kenya.

Sumiyo Okawa; Junko Yasuoka; Naoko Ishikawa; Krishna C. Poudel; Allan Ragi; Masamine Jimba

Parental deaths due to AIDS seriously affect the psychological well-being of children. Social support may provide an effective resource in the care of vulnerable children in resource-limited settings. However, few studies have examined the relationships between social support and psychological well-being among AIDS orphans. This cross-sectional study was conducted to explore associations between perceived social support (PSS) and the psychological well-being of AIDS orphans, and to identify socio-demographic factors that are associated with PSS. Data were collected from 398 pairs of AIDS orphans (aged 10–18 years) and their caregivers in Nairobi, Kenya. The participants provided information on their socio-demographic characteristics, the childrens PSS, and the childrens psychological status (based on measures of depressive symptoms and self-esteem). Of the 398 pairs, 327 were included in the analysis. PSS scores of AIDS orphans showed significant correlations with depressive symptoms (ρ =−0.31, p<0.001) and self-esteem (ρ=0.32, p<0.001). Socio-demographic factors, such as HIV-positive status of children (β=3.714, p=0.014) and cohabitation with siblings (β=3.044, p=0.016), were also associated with higher PSS scores. In particular, HIV-infected children (n=37) had higher scores of PSS from a special person (β=2.208, p=0.004), and children living with biological siblings (n=269) also had higher scores of PSS from both a special person (β=1.411, p=0.029) and friends (β=1.276, p=0.039). In conclusion, this study showed that PSS is positively associated with the psychological well-being of AIDS orphans. Siblings and special persons can be effective sources of social support for AIDS orphans, which help to promote their psychological well-being.


BMC Public Health | 2011

Undernutrition among HIV-positive children in Dar es Salaam, Tanzania: antiretroviral therapy alone is not enough

Bruno F. Sunguya; Krishna C. Poudel; Keiko Otsuka; Junko Yasuoka; Linda B. Mlunde; David P Urassa; Namala P Mkopi; Masamine Jimba

BackgroundThe prevalence of HIV/AIDS has exacerbated the impact of childhood undernutrition in many developing countries, including Tanzania. Even with the provision of antiretroviral therapy, undernutrition among HIV-positive children remains a serious problem. Most studies to examine risk factors for undernutrition have been limited to the general population and ART-naive HIV-positive children, making it difficult to generalize findings to ART-treated HIV-positive children. The objectives of this study were thus to compare the proportions of undernutrition among ART-treated HIV-positive and HIV-negative children and to examine factors associated with undernutrition among ART-treated HIV-positive children in Dar es Salaam, Tanzania.MethodsFrom September to October 2010, we conducted a cross-sectional survey among 213 ART-treated HIV-positive and 202 HIV-negative children in Dar es Salaam, Tanzania. We measured the childrens anthropometrics, socio-demographic factors, food security, dietary habits, diarrhea episodes, economic status, and HIV clinical stage. Data were analyzed using both univariate and multivariate methods.ResultsART-treated HIV-positive children had higher rates of undernutrition than their HIV-negative counterparts. Among the ART-treated HIV-positive children, 78 (36.6%) were stunted, 47 (22.1%) were underweight, and 29 (13.6%) were wasted. Households of ART-treated HIV-positive children exhibited lower economic status, lower levels of education, and higher percentages of unmarried caregivers with higher unemployment rates. Food insecurity was prevalent in over half of ART-treated HIV-positive childrens households. Furthermore, ART-treated HIV-positive children were more likely to be orphaned, to be fed less frequently, and to have lower body weight at birth compared to HIV-negative children.In the multivariate analysis, childs HIV-positive status was associated with being underweight (AOR = 4.61, 95% CI 1.38-15.36 P = 0.013) and wasting (AOR = 9.62, 95% CI 1.72-54.02, P = 0.010) but not with stunting (AOR = 0.68, 95% CI 0.26-1.77, P = 0.428). Important factors associated with underweight status among ART-treated HIV-positive children included hunger (AOR = 9.90, P = 0.022), feeding frequency (AOR = 0.02, p < 0.001), and low birth weight (AOR = 5.13, P = 0.039). Factors associated with wasting among ART-treated HIV-positive children were diarrhea (AOR = 22.49, P = 0.001) and feeding frequency (AOR = 0.03, p < 0.001).ConclusionHIV/AIDS is associated with an increased burden of child underweight status and wasting, even among ART-treated children, in Dar es Salaam, Tanzania. In addition to increasing coverage of ART among HIV-positive children, interventions to ameliorate poor nutrition status may be necessary in this and similar settings. Such interventions should aim at promoting adequate feeding patterns, as well as preventing and treating diarrhea.


The Lancet | 2008

Domestic violence against women in Nepal.

Kalpana Poudel-Tandukar; Krishna C. Poudel; Junko Yasuoka; Takashi Eto; Masamine Jimba

Contant CME, Hop WCJ, van ‘t Sant HP, et al. Mechanical bowel preparation for elective colorectal surgery: a multicentre randomised trial. Lancet 2007; 370: 2112–17—In this Article (Dec 22/29), the “Role of the funding source” section was omitted. It should have read “There was no funding source or sponsor. The corresponding author had full access to all the data in the study and had fi nal responsibility for the decision to submit for publication.” The “Contributors” section was also omitted, and should have stated that “All authors participated in the data analysis and reporting stage of this manuscript, and had seen and approved the fi nal version.” The “Confl ict of interest statement” should have read “We declare that we have no confl ict of interest.” Domestic violence against women in Nepal


Nutrition Journal | 2012

Ready to Use Therapeutic Foods (RUTF) improves undernutrition among ART-treated, HIV-positive children in Dar es Salaam, Tanzania

Bruno F. Sunguya; Krishna C. Poudel; Linda B. Mlunde; Keiko Otsuka; Junko Yasuoka; David P Urassa; Namala P Mkopi; Masamine Jimba

BackgroundHIV/AIDS is associated with an increased burden of undernutrition among children even under antiretroviral therapy (ART). To treat undernutrition, WHO endorsed the use of Ready to Use Therapeutic Foods (RUTF) that can reduce case fatality and undernutrition among ART-naïve HIV-positive children. However, its effects are not studied among ART-treated, HIV-positive children. Therefore, we examined the association between RUTF use with underweight, wasting, and stunting statuses among ART-treated HIV-positive children in Dar es Salaam, Tanzania.MethodsThis cross-sectional study was conducted from September-October 2010. The target population was 219 ART-treated, HIV-positive children and the same number of their caregivers. We used questionnaires to measure socio-economic factors, food security, RUTF-use, and ART-duration. Our outcome variables were underweight, wasting, and stunting statuses.ResultsOf 219 ART-treated, HIV-positive children, 140 (63.9%) had received RUTF intervention prior to the interview. The percentages of underweight and wasting among non-RUTF-receivers were 12.4% and 16.5%; whereas those of RUTF-receivers were 3.0% (P = 0.006) and 2.8% (P = 0.001), respectively. RUTF-receivers were less likely to have underweight (Adjusted Odd Ratio (AOR) =0.19, CI: 0.04, 0.78), and wasting (AOR = 0.24, CI: 0.07, 0.81), compared to non RUTF-receivers. Among RUTF receivers, children treated for at least four months (n = 84) were less likely to have underweight (P = 0.049), wasting (P = 0.049) and stunting (P < 0.001).ConclusionsAmong HIV-positive children under ART, the provision of RUTF for at least four months was associated with low proportions of undernutrition status. RUTF has a potential to improve undernutrition among HIV-positive children under ART in the clinical settings in Dar es Salaam, Tanzania.


Journal of Substance Use | 2011

Risk vs. protective factors for substance use among adolescents in Cambodia

Siyan Yi; Krishna C. Poudel; Junko Yasuoka; Paula H. Palmer; Songky Yi; Masamine Jimba

Objective: To examine the effects of risk and protective factors in multiple domains on adolescent substance use in Cambodia. Methods: Participants included 1943 students randomly selected from 11 schools in Battembang provincial town. The examined risk factors included depression, peer delinquency, family violence, and community violence. Protective factors included family support function and school attachment. All expected risk and protective factors were simultaneously entered in a multiple linear regression model. Results: Of the total number of participants, 2.6% had used illicit drugs, 47.4% had drunk at least a full glass of alcohol, and 9.9% had smoked at least a whole cigarette during the past three months. After adjustment, substance use remained significantly associated with risk factors including depression, peer delinquency, family-violence, victimization, and community-violence witnessing. It also remained significantly associated with some socio-demographic characteristics such as higher school grade, older age, and male gender. In contrast, none of protective factors remained significantly associated with substance use. Conclusions: This study indicates that multiple risk factors play critical roles in predicting adolescent substance use, while protective factors in both family and school domains have only limited impacts. Prevention and intervention efforts should focus more on the risk factors by targeting males during the early teenage years.


Aids Care-psychological and Socio-medical Aspects of Aids\/hiv | 2009

Influencing factors for seeking HIV voluntary counseling and testing among tuberculosis patients in Cambodia

Siyan Yi; Krishna C. Poudel; Junko Yasuoka; Masao Ichikawa; Vutha Tan; Masamine Jimba

Abstract We explored the factors influencing voluntary counseling and testing (VCT) utilization among tuberculosis patients attending two referral hospitals in Cambodia. We conducted face-to-face interviews using a structured questionnaire. We compared HIV/AIDS knowledge, HIV testing attitudes, risks for exposure to HIV, and AIDS stigma between VCT users and non-users. Compared to VCT non-users, VCT users had significantly higher risks for HIV and were more likely to have used condoms. Regarding stigma, VCT non-users demonstrated significantly greater AIDS stigmatizing beliefs compared to VCT users. To increase VCT utilization among TB patients, we need effective strategies to reduce AIDS stigma among them. Moreover, initiation of routine HIV testing in TB facilities might be another effective solution.


International Journal of Drug Policy | 2010

Correlates of sharing injection equipment among male injecting drug users in Kathmandu, Nepal

Krishna C. Poudel; Kalpana Poudel-Tandukar; Junko Yasuoka; Anand B. Joshi; Masamine Jimba

BACKGROUND HIV prevalence is high and risky injection practices occur frequently among injecting drug users (IDUs) in Nepal. We explored the correlates of sharing injection equipment (having injected with a needle or syringe previously used by another) among male IDUs in Kathmandu, Nepal. METHODS From August to September 2007, we anonymously interviewed 296 male IDUs in Kathmandu, Nepal, using a structured questionnaire. We performed bivariate and multivariable logistic regression analysis and identified variables associated with sharing injection equipment. RESULTS Over half (n=152) of the participants reported injecting drugs with a needle or syringe previously used by another in the past year. Of these, 70% reported engaging in sharing injection equipment with multiple persons. The unavailability of new needles and drinking alcohol were independently associated with sharing injection equipment among the study participants. CONCLUSIONS IDUs who drank alcohol or who could not obtain new needles when needed were more likely to share injection equipment. Our results suggest that reducing alcohol use and increasing the availability of new needles and syringes might improve safer injection practices among male IDUs in Kathmandu, Nepal.


PLOS ONE | 2012

High Risk of ART Non-Adherence and Delay of ART Initiation among HIV Positive Double Orphans in Kigali, Rwanda

Kimiyo Kikuchi; Krishna C. Poudel; John Muganda; Adolphe Majyambere; Keiko Otsuka; Tomoko Sato; Vincent Mutabazi; Simon Pierre Nyonsenga; Ribakare Muhayimpundu; Masamine Jimba; Junko Yasuoka

Background To reduce HIV/AIDS related mortality of children, adherence to antiretroviral treatment (ART) is critical in the treatment of HIV positive children. However, little is known about the association between ART adherence and different orphan status. The aims of this study were to assess the ART adherence and identify whether different orphan status was associated with the child’s adherence. Methods A total of 717 HIV positive children and the same number of caregivers participated in this cross-sectional study. Children’s adherence rate was measured using a pill count method and those who took 85% or more of the prescribed doses were defined as adherent. To collect data about adherence related factors, we also interviewed caregivers using a structured questionnaire. Results Of all children (N = 717), participants from each orphan category (double orphan, maternal orphan, paternal orphan, non-orphan) were 346, 89, 169, and 113, respectively. ART non-adherence rate of each orphan category was 59.3%, 44.9%, 46.7%, and 49.7%, respectively. The multivariate analysis indicated that maternal orphans (AOR 0.31, 95% CI 0.12–0.80), paternal orphans (AOR 0.35, 95% CI 0.14–0.89), and non-orphans (AOR 0.45, 95% CI 0.21–0.99) were less likely to be non-adherent compared to double orphans. Double orphans who had a sibling as a caregiver were more likely to be non-adherent. The first mean CD4 count prior to initiating treatment was 520, 601, 599, and 844 (cells/ml), respectively (p<0.001). Their mean age at sero-status detection was 5.9, 5.3, 4.8, and 3.9 (year old), respectively (p<0.001). Conclusions Double orphans were at highest risk of ART non-adherence and especially those who had a sibling as a caregiver had high risk. They were also in danger of initiating ART at an older age and at a later stage of HIV/AIDS compared with other orphan categories. Double orphans need more attention to the promote child’s adherence to ART.

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Krishna C. Poudel

University of Massachusetts Amherst

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Siyan Yi

Touro University California

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