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Volume 7, Issue 6 (Suppl)

J Obes Weight Loss Ther

ISSN: 2165-7904 JOWT, an open access journal

Obesity Meeting 2017

October 23-24, 2017

October 23-24, 2017 Dubai, UAE

Global Obesity Meeting

Diagnostic accuracy of body mass index (BMI) to identify obesity in Saudi adult population in a

community based setting

Muath Abdurhman Alammar, Abdullah Alkhenizan, Kossay El-Abd and Suad Alsoghayer

King Faisal Specialist Hospital and Research Center, Saudi Arabia

Background & Aim:

The prevalence of obesity in Saudi Arabia is high. This is the first Saudi study aiming to investigate the

accuracy of body mass index (BMI) to diagnose obesity among the Saudi population using body fat percentage as the gold

standard. Accurate obesity diagnosis is important for the management of patients who are at most risk of obesity and its

complications.

Materials & Methods:

This is a cross-sectional study including a calculated sample size of 942 subjects who visited the Family

Medicine clinics at KFSH & RC from January 2005 to March 2016 and did DEXA scan. DEXA scan was used to estimate body

fat percentage (BF %). The diagnostic accuracy of BMI was assessed by using the World Health Organization and the American

Association of Clinical Endocrinologists and American College of Endocrinology reference standard for obesity of BF%>25%

in men and >35% for women.

Results:

BMI-defined obesity (≥30 kg/m

) was present in 28.7% of men and 53.1% of women while BF% defined obesity was

present in 83.9% and 97.3% of males and females respectively which correspond to BMI 24. Even if we consider the highest

acceptable range of BF% (33% for men and 43% for women) the highest acceptable BMI cut-off to diagnose obesity should not

exceed 27 for both genders.

Conclusion:

Despite the use of the highest acceptable range of BF%, the diagnostic accuracy of BMI 30 to diagnose obesity is

limited. This emphasize the need to lower the BMI cut-off used for obesity diagnose among the Saudi population.

J Obes Weight Loss Ther 2017, 7:6 (Suppl)

DOI: 10.4172/2165-7904-C1-052