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An ultrasound-based referential of body height-adjusted normal liver organometry in school children from Bokito in rural Cameroon.

ABSTRACT: The grading system for ultrasonographic assessment of Schistosoma mansoni morbidity is crucial for evaluation of control programs. This requires prior definition of normal liver organometric ranges in the population from the endemic area. A cross-sectional study was conducted in a S. mansoni endemic area in rural Cameroon. 1002 Participants were screened and 234 of them, free from all common liver-affecting diseases in the area (schistosomiasis, malaria, hepatitis B and C) and with no ultrasonographic signs of liver disease were selected and their liver parameters measured by ultrasonography. All statistics were considered significant for p-values?

SUBMITTER: Kamdem SD

PROVIDER: S-EPMC7026466 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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An ultrasound-based referential of body height-adjusted normal liver organometry in school children from Bokito in rural Cameroon.

Kamdem Severin Donald SD Kuemkon Erve Martial EM Kamguia Leonel Meyo LM Tchanana Gladys K GK Konhawa Francis F Nche Frungwa F Oumarou Alim A Hamza Mamadou M Essomba René Ghislain RG Kengne Michel M Ondigui Bienvenu Etogo BE Assoumou Marie Claire Okomo MCO Brombacher Frank F Nono Justin Komguep JK

Scientific reports 20200217 1

The grading system for ultrasonographic assessment of Schistosoma mansoni morbidity is crucial for evaluation of control programs. This requires prior definition of normal liver organometric ranges in the population from the endemic area. A cross-sectional study was conducted in a S. mansoni endemic area in rural Cameroon. 1002 Participants were screened and 234 of them, free from all common liver-affecting diseases in the area (schistosomiasis, malaria, hepatitis B and C) and with no ultrasonog ...[more]

PMID: 32066761

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Project description:The relationship between ewe body condition score (BCS) and liveweight (LW) has been exploited previously to predict the former from LW, LW-change, and previous BCS records. It was hypothesized that if fleece weight and conceptus-free liveweight and LW-change, and in addition, height at withers were used, the accuracy of current approaches to predicting BCS would be enhanced. Ewes born in 2017 (n = 429) were followed from 8 mo to approximately 42 mo of age in New Zealand. Individual ewe data were collected on LW and BCS at different stages of the annual production cycle (i.e., prebreeding, at pregnancy diagnosis, prelambing, and weaning). Additionally, individual lambing dates, ewe fleece weight, and height at withers data were collected. Linear regression models were fitted to predict current BCS at each ewe age and stage of the annual production cycle using two LW-based models, namely, unadjusted for conceptus weight and fleece weight (LW alone1) and adjusted (LW alone2) models. Furthermore, another two models based on a combination of LW, LW-change, previous BCS, and height at withers (combined models), namely, unadjusted (combined1) and adjusted for conceptus and fleece weight (combined2), were fitted. Combined models gave more accurate (with lower root mean square error: RMSE) BCS predictions than models based on LW records alone. However, applying adjusted models did not improve BCS prediction accuracy (or reduce RMSE) or improve model goodness of fit (R 2) (P > 0.05). Furthermore, in all models, both LW-alone and combined models, a great proportion of variability in BCS, could not be accounted for (0.25 ≥ R 2 ≥ 0.83) and there was substantial prediction error (0.33 BCS ≥ RMSE ≥ 0.49 BCS) across age groups and stages of the annual production cycle and over time (years). Therefore, using additional ewe data which allowed for the correction of LW for fleece and conceptus weight and using height at withers as an additional predictor did not improve model accuracy. In fact, the findings suggest that adjusting LW data for conceptus and fleece weight offer no additional value to the BCS prediction models based on LW. Therefore, additional research to identify alternative methodologies to account for individual animal variability is still needed.

Project description:BackgroundDespite parental concern, few studies have investigated children's experiences with school-based screening of growth deviations. This study aimed to explore perceptions of height and weight screening and associations with body size dissatisfaction (BSD) among third-grade children aged 8-9 years in central Norway.MethodsIn a cross-sectional study between November 2021 and April 2022, perceptions of height and weight screening and BSD were assessed individually among 209 children (49% girls) through researcher-assisted interviews.ResultsMost children indicated satisfaction with the screening by selecting a happy emoji, whereas only 1% indicated dissatisfaction, by selecting an unhappy emoji. However, 23%-30% selected a neutral emoji, indicating either neutrality or a response between satisfaction and dissatisfaction. No difference in the perception of height and weight screening was found between genders or body mass index (BMI). Children with parents from non-Western countries had a higher risk of being less satisfied with the height screening (OR=3.0, 95% CI 1.2 to 7.3) than those from Western origin, and children attending schools with lower socioeconomic status (SES) had increased risk of being less satisfied with both height (OR=5.5, 95% CI 2.2 to 13.5) and weight screening (OR=4.0, 95% CI 1.7 to 9.3), compared with children from schools with medium-high SES. Twenty-three percent reported BSD, in which 14% and 9% desired a thinner or larger body, respectively, independent of gender and BMI. No association was found between BSD and the perception of weighing (OR=1.1, 95% CI 0.6 to 2.4), however, BSD was associated with being more satisfied with height screening (OR=0.3, 95% CI 0.1 to 0.8).ConclusionIn the present sample, most children indicated satisfaction with school-based height and weight screening, with no differences between gender or BMI category. However, more children of non-Western origin and from areas with low SES reported less satisfaction with the screening, independent of BSD.

Dataset Information

An ultrasound-based referential of body height-adjusted normal liver organometry in school children from Bokito in rural Cameroon.

Publications

An ultrasound-based referential of body height-adjusted normal liver organometry in school children from Bokito in rural Cameroon.

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