Effects of ethnicity and gender on reliable measurements using the Sahara ultrasonometer

Frances A. Tylavsky, Laura D. Carbone, Andrew J. Bush

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The objectives of this study were to evaluate the relationship between age and ultrasound (US) parameters and to assess the influences of ethnicity, sex, body mass index (BMI), and age on the ability to obtain a reliable measurement as indicated by the Sahara software. Quantitative ultrasound parameters were assessed in 1554 African American and Caucasian men and women between the ages of 18 and 93 using the Sahara ultrasonometer. The relationships among age and broadband ultrasound attenuation, speed of sound (SOS), qualitative ultrasound index, and bone mineral density showed a decline in all US parameters with age. The relationship was linear for males and curvilinear for females for all parameters except SOS, which was also linear for females. The Sahara software indicated that 66% of the measurements for African Amerian men were unreliable, 27% for African American females, 14% for Caucasian males, and 6% for Caucasian females. The factors found to contribute to the likelihood (odds ratio, [95% confidence interval]) of obtaining an unreliable estimate were having a high BMI (1.13, [1.1, 1.16]), being of African American ethnicity (5.29 [3.78, 7.41]), and being male (3.1 [2.8, 4.1]). Our study provides evidence that US results from the Sahara should be interpreted with caution in males, in individuals with African American ancestry, and in individuals with a high BMI.

Original languageEnglish (US)
Pages (from-to)411-419
Number of pages9
JournalJournal of Clinical Densitometry
Volume5
Issue number4
DOIs
StatePublished - Jan 1 2002
Externally publishedYes

Fingerprint

Northern Africa
African Americans
Body Mass Index
Software
Bone Density
Odds Ratio
Confidence Intervals

Keywords

  • Body mass index
  • Bone mineral density
  • Ethnic
  • Gender
  • Ultrasound

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Orthopedics and Sports Medicine
  • Radiology Nuclear Medicine and imaging

Cite this

Effects of ethnicity and gender on reliable measurements using the Sahara ultrasonometer. / Tylavsky, Frances A.; Carbone, Laura D.; Bush, Andrew J.

In: Journal of Clinical Densitometry, Vol. 5, No. 4, 01.01.2002, p. 411-419.

Research output: Contribution to journalArticle

@article{433566358b334e9893381c11446c3bfb,
title = "Effects of ethnicity and gender on reliable measurements using the Sahara ultrasonometer",
abstract = "The objectives of this study were to evaluate the relationship between age and ultrasound (US) parameters and to assess the influences of ethnicity, sex, body mass index (BMI), and age on the ability to obtain a reliable measurement as indicated by the Sahara software. Quantitative ultrasound parameters were assessed in 1554 African American and Caucasian men and women between the ages of 18 and 93 using the Sahara ultrasonometer. The relationships among age and broadband ultrasound attenuation, speed of sound (SOS), qualitative ultrasound index, and bone mineral density showed a decline in all US parameters with age. The relationship was linear for males and curvilinear for females for all parameters except SOS, which was also linear for females. The Sahara software indicated that 66{\%} of the measurements for African Amerian men were unreliable, 27{\%} for African American females, 14{\%} for Caucasian males, and 6{\%} for Caucasian females. The factors found to contribute to the likelihood (odds ratio, [95{\%} confidence interval]) of obtaining an unreliable estimate were having a high BMI (1.13, [1.1, 1.16]), being of African American ethnicity (5.29 [3.78, 7.41]), and being male (3.1 [2.8, 4.1]). Our study provides evidence that US results from the Sahara should be interpreted with caution in males, in individuals with African American ancestry, and in individuals with a high BMI.",
keywords = "Body mass index, Bone mineral density, Ethnic, Gender, Ultrasound",
author = "Tylavsky, {Frances A.} and Carbone, {Laura D.} and Bush, {Andrew J.}",
year = "2002",
month = "1",
day = "1",
doi = "10.1385/JCD:5:4:411",
language = "English (US)",
volume = "5",
pages = "411--419",
journal = "Journal of Clinical Densitometry",
issn = "1094-6950",
publisher = "Elsevier Inc.",
number = "4",

}

TY - JOUR

T1 - Effects of ethnicity and gender on reliable measurements using the Sahara ultrasonometer

AU - Tylavsky, Frances A.

AU - Carbone, Laura D.

AU - Bush, Andrew J.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - The objectives of this study were to evaluate the relationship between age and ultrasound (US) parameters and to assess the influences of ethnicity, sex, body mass index (BMI), and age on the ability to obtain a reliable measurement as indicated by the Sahara software. Quantitative ultrasound parameters were assessed in 1554 African American and Caucasian men and women between the ages of 18 and 93 using the Sahara ultrasonometer. The relationships among age and broadband ultrasound attenuation, speed of sound (SOS), qualitative ultrasound index, and bone mineral density showed a decline in all US parameters with age. The relationship was linear for males and curvilinear for females for all parameters except SOS, which was also linear for females. The Sahara software indicated that 66% of the measurements for African Amerian men were unreliable, 27% for African American females, 14% for Caucasian males, and 6% for Caucasian females. The factors found to contribute to the likelihood (odds ratio, [95% confidence interval]) of obtaining an unreliable estimate were having a high BMI (1.13, [1.1, 1.16]), being of African American ethnicity (5.29 [3.78, 7.41]), and being male (3.1 [2.8, 4.1]). Our study provides evidence that US results from the Sahara should be interpreted with caution in males, in individuals with African American ancestry, and in individuals with a high BMI.

AB - The objectives of this study were to evaluate the relationship between age and ultrasound (US) parameters and to assess the influences of ethnicity, sex, body mass index (BMI), and age on the ability to obtain a reliable measurement as indicated by the Sahara software. Quantitative ultrasound parameters were assessed in 1554 African American and Caucasian men and women between the ages of 18 and 93 using the Sahara ultrasonometer. The relationships among age and broadband ultrasound attenuation, speed of sound (SOS), qualitative ultrasound index, and bone mineral density showed a decline in all US parameters with age. The relationship was linear for males and curvilinear for females for all parameters except SOS, which was also linear for females. The Sahara software indicated that 66% of the measurements for African Amerian men were unreliable, 27% for African American females, 14% for Caucasian males, and 6% for Caucasian females. The factors found to contribute to the likelihood (odds ratio, [95% confidence interval]) of obtaining an unreliable estimate were having a high BMI (1.13, [1.1, 1.16]), being of African American ethnicity (5.29 [3.78, 7.41]), and being male (3.1 [2.8, 4.1]). Our study provides evidence that US results from the Sahara should be interpreted with caution in males, in individuals with African American ancestry, and in individuals with a high BMI.

KW - Body mass index

KW - Bone mineral density

KW - Ethnic

KW - Gender

KW - Ultrasound

UR - http://www.scopus.com/inward/record.url?scp=12244260097&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=12244260097&partnerID=8YFLogxK

U2 - 10.1385/JCD:5:4:411

DO - 10.1385/JCD:5:4:411

M3 - Article

C2 - 12665642

AN - SCOPUS:12244260097

VL - 5

SP - 411

EP - 419

JO - Journal of Clinical Densitometry

JF - Journal of Clinical Densitometry

SN - 1094-6950

IS - 4

ER -