BMI calculation in older people: The effect of using direct and surrogate measures of height in a community-based setting

Describing Community-Based Nurses' Knowledge, Attitudes, and Practices in the Nutritional Care of Older Adults: Results of a UK Survey

PURPOSE

To ascertain current nutritional knowledge and training needs of community-based nurses caring for older adults in the United Kingdom.

METHOD

A descriptive cross-sectional, anonymized, online survey of nurses' knowledge, attitudes, and practices related to older adults' nutrition was developed. Community-based nurses working with older adults in the United Kingdom were recruited via social media and convenience sampling.

RESULTS

Responses were received from 194 community-based nurses. Nutritional care was seen as a multidisciplinary responsibility by 62% of participants. Most undertook nutrition screening (93%), were confident in providing nutritional advice (83%), and ease of identifying those in need (88%) was high. However, some aspects of nutritional knowledge were less complete, including recommended daily intakes of protein (60% unsure) and fiber (52% unsure).

CONCLUSION

High confidence in delivering nutritional advice contrasted with uncertainty around some aspects of nutritional knowledge, suggesting opportunities to improve training on the nutritional needs of older adults. [Journal of Gerontological Nursing, 50(11), 13-19.].

Challenges in obtaining accurate anthropometric measures for adults with severe obesity: A community-based study

AIMS

The number of people with severe obesity (BMI ⩾40 kg/m²) is increasing rapidly, but is poorly documented, partly as a result of inappropriate standard anthropometric measurement methods for community-based people.

METHODS

As part of a broader study, people receiving care services and with severe obesity were visited at home. The people were assessed for measurements using different weighing scales and a standard portable stadiometer. If the stadiometer could not be used, their half arm span and knee height were measured to estimate their height using standard predictive equations.

RESULTS

Measurements were taken for 15 women and 10 men (n = 25) aged 40-87 years (mean 62 years). Weights ranged from 98.4 to 211.8 kg (mean 150 kg), with 16 participants requiring bariatric scales. For the six people who were unable to stand, we used wheelchair scales (n = 1), bed weighing scales (n = 2), routine weights from care home records (n = 2) or weight data from hospital records (n = 1). The standard portable stadiometer could only be used for one person; the others required alternative measures from which to estimate height. Large body habitus obscured bony landmarks, meaning alternative measures gave diverse heights. Fourteen participants had a ⩾8 cm difference in height between estimates from half arm span and knee height measurements.

CONCLUSIONS

Standard practice commonly does not provide reliable measurements for people with severe obesity, particularly those with mobility difficulties. An inability to measure weight and height accurately can exclude people from appropriate care, obscuring the true numbers affected and the effectiveness of future service planning. Safe community care requires the availability of specialist scales and standardised methods for height estimation appropriate for older and disabled people with severe obesity.

Imaging modalities for measuring body composition in patients with cancer: opportunities and challenges

Body composition assessment (ie, the measurement of muscle and adiposity) impacts several cancer-related outcomes including treatment-related toxicities, treatment responses, complications, and prognosis. Traditional modalities for body composition measurement include body mass index, body circumference, skinfold thickness, and bioelectrical impedance analysis; advanced imaging modalities include dual energy x-ray absorptiometry, computerized tomography, magnetic resonance imaging, and positron emission tomography. Each modality has its advantages and disadvantages, thus requiring an individualized approach in identifying the most appropriate measure for specific clinical or research situations. Advancements in imaging approaches have led to an abundance of available data, however, the lack of standardized thresholds for classification of abnormal muscle mass or adiposity has been a barrier to adopting these measurements widely in research and clinical care. In this review, we discuss the different modalities in detail and provide guidance on their unique opportunities and challenges.

Knowledge, attitude, and practice of patients with type 2 diabetes mellitus with regard to their disease: a cross-sectional study among Palestinians of the West Bank

Background

In Palestine, type 2 diabetes mellitus (T2DM) is a rapidly growing health concern. This study evaluated knowledge, attitude, and practice of patients with T2DM with regard to their disease. The study also investigated association and correlation between knowledge, attitude, and practice with sociodemographic and clinical characteristics of the patients. Predictors of higher knowledge, positive attitude, and good practice were also identified.

Methods

This cross-sectional study was conducted in primary healthcare facilities frequently visited by patients with T2DM across the West Bank of Palestine in the period of October 2018 to January 2019. An interviewer administered questionnaire was used to determine knowledge, attitude and practice of patients with T2DM with regard to their disease.

Results

Out of 300 patients invited, 220 (73.3%) patients responded. In this study, the median age was 57.0 years (51.0, 65.0), the median time elapsed since diagnosis with T2DM was 7.0 years (4.0, 14.0), the median fasting blood glucose was 150.0 mg/dL (128.8, 180.0), the median postprandial glucose was 230.0 mg/dL (200.0, 270.0), the median HbA_1c was 7.8% (7.0, 8.53), and the median BMI was 28.8 kg/m² (25.5, 33.1). The median knowledge score was 6.0/13.0 (4.5/13.0, 7.5/13.0), the median attitude score was 3.0/4.0 (2.0/4.0, 4.0/4.0), and the median practice score was 3.0 (1.0/5.0, 4.0/5.0). Having university education was strongly associated with having higher knowledge scores (p-value = 0.001). Additionally, having attended an educational program on diabetes was moderately associated with higher practice scores (p-value = 0.026).

Conclusions

Findings of this study highlighted the need for appropriately designed interventions to increase knowledge about T2DM among patients with low educational level. Well-designed educational programs might promote healthy practice among patients with T2DM. Future studies are still needed to assess if such interventions could be effective in improving health outcomes and quality of life of patients with T2DM in Palestine.

The diagnostic performance of a simplified blood test (SteatoTest-2) for the prediction of liver steatosis

BACKGROUND

Serum biomarkers of steatosis such as the SteatoTest are recommended for large-scale screening studies, because imaging is less accessible and more expensive.

AIMS

The primary aim of this retrospective analysis of prospective studies was to construct a new SteatoTest-2 that was not inferior to the reference first-generation SteatoTest, but that did not include BMI or bilirubin, as these two components can increase test variability because of the assessment of weight and height and in case of Gilbert syndrome or hemolysis, respectively.

PATIENTS AND METHODS

Five different subsets of 2997 patients with biopsies were evaluated for test construction and validation, and four to assess the prevalence of steatosis in target populations with increasing risks of steatosis. The performance of the SteatoTest-2 was compared with the reference test, using the noninferiority test (0.10 margin) and the Lin concordance coefficient.

RESULTS

Areas under the receiver operating characteristic curve of the SteatoTest-2 were noninferior to the reference test (P<0.001). Areas under the receiver operating characteristic curve varied in the SteatoTest-2 and the reference test according to subsets and the prevalence of steatosis, with 0.772 [95% confidence interval (CI): 0.713-0.820] versus 0.786 (95% CI: 0.729-0.832) in the 2997 cases with biopsy and 0.822 (95% CI: 0.810-0.834) versus 0.868 (95% CI: 0.858-0.878) in the 5776 cases including healthy individuals without risk factors of steatosis as controls, respectively. The Lin coefficient was highly concordant (P<0.001), from 0.74 (95% CI: 0.74-0.74) in presumed NAFLD to 0.91 (95% CI: 0.89-0.93) in the construction subset.

CONCLUSION

The SteatoTest-2 is simpler and noninferior to the first-generation SteatoTest for the diagnosis of steatosis, without the limitations of BMI and bilirubin.

Accuracy of body mass index measurements in community-dwelling older Japanese people based on self-reported anthropometric data

PURPOSE

The aim was to assess the accuracy of body mass index (BMI) measurements in Japanese older people based on self-reported anthropometric data.

METHODS

The study participants were 420 older people aged 65 years or older who were living independently in their communities. The participants' BMIs were calculated based on height and weight values obtained from self-reported questionnaires and actual measurements. The concordance between self-reported and measured BMI values was then analyzed using intraclass correlation coefficients (ICCs) and 95% limits of agreement (95% LOA) stratified by sex.

RESULTS

The ICCs were 0.964 in men and 0.970 in women; however, the 95% LOA were relatively broad, ranging from - 1.07 to 1.39 kg/m² in men and from - 1.52 to 1.46 kg/m² in women.

CONCLUSIONS

These findings suggest that BMI assessments in Japanese older people should be based on measured as opposed to self-reported values when investigating changes in BMI over time.