Social aspects of malaria in Heping, Hainan

Tang, Lin-hua; Manderson, Lenore; Da, Dongxing; Wu, Kai-Chen; Xian-zheng, Cai; Changxiong, Lan; Gu, Zhijun; Wang, Ke-an

doi:10.1016/0001-706x(94)00086-g

Cited by 11 publications

(4 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unlike previous studies exploring compliance with ITN use [ 14 , 21 , 27 - 29 ], this study relied on the combined collection of self-reported information and direct observation. This method, which had found limited application only in early bed net trials [ 30 - 32 ], allows a better assessment of the extent to which self-reported information corresponds to people's actual behaviour. Therefore, the study provides further evidence that compliance with bed net use tends to be over-reported [ 30 - 32 ], especially during the dry season.…”

Section: Discussionmentioning

confidence: 99%

“…This method, which had found limited application only in early bed net trials [ 30 - 32 ], allows a better assessment of the extent to which self-reported information corresponds to people's actual behaviour. Therefore, the study provides further evidence that compliance with bed net use tends to be over-reported [ 30 - 32 ], especially during the dry season. One must consider, however, that in the study, compliance with bed net use was observed only at one specific point in time, making it impossible to exclude that the observation occurred just before the child was placed under the net or just after he/she had been removed from under the net.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Compliance of young children with ITN protection in rural Burkina Faso

Frey

Traoré²,

Allegri

et al. 2006

Malar J

View full text Add to dashboard Cite

BackgroundInsecticide-treated bed nets (ITNs) are known to be highly effective in reducing malaria morbidity and mortality. The effectiveness of ITNs is largely influenced by behavioural factors and not much is known regarding such factors under programme conditions.MethodsThis descriptive study was nested into a large ITN effectiveness study in rural Burkina Faso. During two cross-sectional surveys in the dry and rainy season of 2003, random samples of young children from nine representative villages (n = 180 per survey) were investigated for compliance with ITN protection and related behaviour. Data were collected through direct observations and through interviews with mothers.ResultsITNs were perceived as very important for protection against mosquitoes and malaria particularly during the rainy season, but there were problems with their use during the dry season. Young children usually slept with their mother under the ITN and self-reported compliance was 66% and 98% during dry and rainy season, respectively (confirmed by direct observation in 34% and 79%, respectively). Important reasons for low compliance during the dry season were high temperatures inside houses and problems related to changing sleeping places during the night.ConclusionUnder programme conditions, compliance with ITN protection in young children is sufficient during the rainy season, but is rather low during the hot and dry season. Greater emphasis needs to be placed on information/education efforts to make people aware of the fact that the risk of contracting malaria may persist throughout the year.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Compliance of young children with ITN protection in rural Burkina Faso

Frey

Traoré²,

Allegri

et al. 2006

Malar J

View full text Add to dashboard Cite

show abstract

“…Most objective measures using visual confirmation occurred concurrently with the self-reported use, while the night visits were commonly paired with self-reported use measurements the following day. Two studies were unclear about when the visual inspections occurred relative to the self-reports [ 22 , 28 ] and another study reported average self-reported ITN use the night prior from multiple measures (monthly) and a single night visit towards the end of the study [ 29 ]. All studies assessed self-reported and objectively measured ITN use among the same group of study participants, however, four studies had unexplained larger samples for the self-reports than objective measures [ 21 , 25 , 30 ].…”

Section: Methodsmentioning

confidence: 99%

Quantifying bias in measuring insecticide-treated bednet use: meta-analysis of self-reported vs objectively measured adherence

Krezanoski

Bangsberg

Tsai

2018

Journal of Global Health

View full text Add to dashboard Cite

BackgroundInsecticide-treated bednets (ITNs) are recommended for use by 3.4 billion people at risk of malaria world-wide. Policy makers rely on measurements of ITN use to optimize malaria prevention efforts. Self-reports are the most common means of assessing ITN use, but self-reports may be biased in a way that reduces their reliability as a proxy for ITN adherence. This meta-analysis compared self-reported and two methods which are more objective measures of ITN use to explore whether self-reports overestimate actual ITN adherence.MethodsA comprehensive search of electronic databases and hand searching reference lists resulted in screening 2885 records and 202 articles were read in full. Sixteen articles with comparable data were chosen for the meta-analysis. Comparable data was defined as self-reported and objectively measured ITN use (observation of a mounted ITN or surprise visits confirming use) at the same unit of analysis, covering the same time period and same population. A random effects model was used to determine a weighted average risk difference between self-reported and objectively measured ITN use. Additional stratified analyses were conducted to explore study heterogeneity.ResultsSelf-reported ITN use is 8 percentage points (95% confidence interval CI: 3 to 13) higher than objectively measured ITN use, representing a 13.6% overestimation relative to the proportion measured as adherent to ITN use by objective measures. Wide variations in the discrepancies between self-reports and objective measures were unable to be explained using stratified analyses of variables including location, year of publication, seasonality and others.ConclusionsSelf-reports overestimate ITN adherence relative to objectively measured ITN use by 13.6% and do so in an unpredictable manner that raises questions about the reliability of using self-reported ITN use alone as a surveillance tool and a guide for making policy decisions.

show abstract

“…The few studies that have validated reported ITN use through nighttime checks have found that survey-reported use generally overestimates actual ITN use by 6-32% points. [3][4][5] Over-reporting of ITN use, usually attributed to recall and/or social desirability bias, 6,7 can result in significant underestimates of ITN effectiveness in reducing malaria risk. 8,9 As part of a prospective study examining the effectiveness of ITNs to prevent malaria in a fixed cohort of young children (aged 6-59 months) in six rural villages in Machinga District, Malawi, we compared caregiver verbal reports of ITN use at monthly interviews at community centers with visual confirmation of ITNs at home visits.…”

mentioning

confidence: 99%

Home Visits to Assess the Reliability of Caregiver-Reported Use of Insecticide-Treated Bednets by Children in Machinga District, Malawi

Wong

Shah

Mwandama

et al. 2015

The American Society of Tropical Medicine and Hygiene

View full text Add to dashboard Cite

Abstract. A malaria cohort study was conducted among young children in Machinga District, Malawi, following distribution of insecticide-treated bednets (ITNs) in May 2012. To assess ITN use, two independently sampled subsets of children (211 during survey 1 [December 2012-January 2013 and 325 during survey 2 [September-October 2013]) were randomly selected to compare the proportions of positive and negative agreement between caregiver verbal reports at monthly interviews with visual observation of the ITN at home visits. Caregiver-reported ITN use was consistently high during both surveys (98.1% and 96.0%, respectively; P = 0.17). Home visit-based ITN use fell significantly (P 0.001) from survey 1 (98.6%) to survey 2 (88.6%). The proportions of positive agreement between caregiver report and home visit in the first and second surveys were 98.8% (95% confidence interval [CI] 97.6-99.8%) and 93.3% (95% CI 91.2-95.3%), respectively. The proportions of negative agreement in the first and second surveys were 28.6% (95% CI 0-75.0%) and 20.0% (95% CI 0.1-35.0%), respectively. ITN use by children was high in Machinga District, and caregiver reports and home visits with visual confirmation of the net demonstrated a high level of agreement for use of ITNs, but a low level of agreement when ITNs were not used.Insecticide-treated bednets (ITNs) can dramatically reduce malaria transmission 1 and are a cornerstone of malaria control programs throughout sub-Saharan Africa.2 In communitybased surveys, however, use of ITNs often falls below the World Health Organization's universal coverage target.2 Evaluations of ITN use frequently rely on self-or caregiver report because direct observation at night is challenging due to logistical considerations, security issues, and community acceptance. The few studies that have validated reported ITN use through nighttime checks have found that survey-reported use generally overestimates actual ITN use by 6-32% points. [3][4][5] Over-reporting of ITN use, usually attributed to recall and/or social desirability bias, 6,7 can result in significant underestimates of ITN effectiveness in reducing malaria risk. 8,9 As part of a prospective study examining the effectiveness of ITNs to prevent malaria in a fixed cohort of young children (aged 6-59 months) in six rural villages in Machinga District, Malawi, we compared caregiver verbal reports of ITN use at monthly interviews at community centers with visual confirmation of ITNs at home visits.The cohort study was conducted from April 2012 to December 2013 and included baseline distribution of new PermaNet 2.0 long-lasting ITNs (Vestergaard, Lausanne, Switzerland) in May 2012 to all 2,178 registered households. The distribution provided one ITN per every two household residents (plus an additional ITN for odd numbers). Caregivers of enrolled children were interviewed once per month at a community center away from their homes using a standardized questionnaire. Caregivers' responses regarding whether their child slept under an ITN on the night prior...

show abstract

Social aspects of malaria in Heping, Hainan

Cited by 11 publications

References 19 publications

Compliance of young children with ITN protection in rural Burkina Faso

Compliance of young children with ITN protection in rural Burkina Faso

Quantifying bias in measuring insecticide-treated bednet use: meta-analysis of self-reported vs objectively measured adherence

Home Visits to Assess the Reliability of Caregiver-Reported Use of Insecticide-Treated Bednets by Children in Machinga District, Malawi

Contact Info

Product

Resources

About