Dataset Information

Validating prediction equations for mid-arm circumference measurements in adults: National Health and Nutrition Examination Survey, 2001-2012.

ABSTRACT:

Background

Accurate measurement of blood pressure (BP) requires choosing an appropriate BP cuff size.

Objectives

The objective of this study was to examine the validity of regression equations to predict mid-arm circumference (mid-AC) using 2001-2012 National Health and Nutrition Examination Survey height and weight data.

Methods

National Health and Nutrition Examination Survey uses a complex multistage probability sample design to represent the civilian, noninstitutionalized US resident population. The sample consisted of 29 745 participants aged 20 years and older.

Results

For both men and women, the correlations between the predicted and measured mid-AC values were as follows: r=0.91 and 0.92, P<0.001, respectively. For both sexes, the difference between the predicted and measured mid-AC mean values was less than 1.5 cm. The overall percent agreement for selecting the appropriate BP cuff, using the American Heart Association cuff size criteria and comparing the predicted mid-AC values with measured values, was 83.0% for men and 80.0% for women. The percent agreement for small adult cuff was 10.0% for men and 54.0% for women; for adult cuff it was 87.0% for men and 88.0% for women; for large adult cuff it was 82.0% for men and 80.0% for women; and for thigh cuff it was 84.0% for men and 74.0% for women. All agreement statistics were above chance (for men, γ=0.96, and Kendall's Tau-b=0.73; for women, γ=0.97, and Kendall's Tau-b=0.76).

Conclusion

When possible, mid-AC should be directly measured for appropriate BP cuffing; however, the results of this validation study suggest that the prediction equations for mid-AC estimations were highly correlated and had an overall 80.0% agreement with measured mid-AC.

SUBMITTER: Nwankwo T

PROVIDER: S-EPMC7470227 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Publications

Validating prediction equations for mid-arm circumference measurements in adults: National Health and Nutrition Examination Survey, 2001-2012.

Nwankwo Tatiana T Ostchega Yechiam Y Zhang Guangyu G Hughes Jeffery P JP

Blood pressure monitoring 20150601 3

<h4>Background</h4>Accurate measurement of blood pressure (BP) requires choosing an appropriate BP cuff size.<h4>Objectives</h4>The objective of this study was to examine the validity of regression equations to predict mid-arm circumference (mid-AC) using 2001-2012 National Health and Nutrition Examination Survey height and weight data.<h4>Methods</h4>National Health and Nutrition Examination Survey uses a complex multistage probability sample design to represent the civilian, noninstitutionaliz ...[more]

PMID: 25647285

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Project description:Poor nutritional status in pregnancy expressed as low mid-upper arm circumference (MUAC) is associated with low birth weight. The study aims were to assess the nutritional status of pregnant Ethiopian women using MUAC and examine association with nutrition-specific and nutrition-sensitive factors, using baseline data of a prospective longitudinal observational birth cohort study conducted in three rural districts in the Oromia region of Ethiopia. Recruitment into the cohort was rolling over a period of nine months, and the data used for this analysis were collected while the women were between 12-32 weeks of gestation. Detailed household socio-demographics, agricultural production, women's health, morbidity and diets, with weights, heights and MUAC, and anemia prevalence (HemoCue) were collected. The prevalence of low MUAC (< 23 cm) was 41%. Controlling for location and clustering, wealth quintile (OR = 0.88, CI = 0.82 to 0.96, p<0.01) was associated with decreased risk of low MUAC, while trimester (OR = 1.31, CI = 1.16 to 1.48, p<0.001) was associated with increased risk of low MUAC. The only significant factor amenable to nutrition-specific interventions was altitude-adjusted anemia, which was associated with increased risk of low MUAC (OR = 1.28, CI = 1.09 to 1.49, p<0.01). Significant factors amenable to nutrition-sensitive factors and associated with higher odds of low MUAC were household food insecurity (OR = 1.04, CI = 1.02 to 1.06, p<0.001), distance to the clinic in minutes (OR = 1.01, CI = 1.0 to 1.01, p<0.0001) and season of recruitment (lean versus non lean) (OR = 1.30, CI = 1.10 to 1.54, p<0.01). Literacy (OR = 0.85, CI = 0.74 to 0.98, p<0.05) and numeracy (OR = 0.75, CI = 0.62 to 0.91, p<0.01) were also significantly associated with lower odds of low MUAC. Poor nutritional status in pregnancy expressed as percent with low MUAC was high in Ethiopian women. It was associated with several nutrition-specific and -sensitive factors indicating the importance of multisectoral actions in improving outcomes within the first 1000 days.

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Dataset Information

Validating prediction equations for mid-arm circumference measurements in adults: National Health and Nutrition Examination Survey, 2001-2012.

Background

Objectives

Methods

Results

Conclusion

Publications

Validating prediction equations for mid-arm circumference measurements in adults: National Health and Nutrition Examination Survey, 2001-2012.

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