African Americans in Standard Behavioral Treatment for Obesity, 2001-2015: What Have We Learned?
Rachel W Goode, Mindi A Styn, Dara D Mendez and 1 others
PMID 28322668WHAT IT FOUND
African American representation exceeded the US population estimate in 14 of 23 behavioral weight-loss trials, but only 10 reported outcomes by race.
Multi-centre trials reported less 6-month weight loss for African Americans than White participants.
Key findings
01The review identified 23 standard behavioral weight-loss trials published from 2001 to 2015, and only 10 reported outcomes by race or considered race in analysis.
02All but two included trials reported racial distribution, and 14 exceeded the US population estimate of 12.9% to 13.6% African American representation.
03The paper reports that in multi-centre NIH-funded trials, African Americans lost less weight than White participants at 6 months (AA: -1.6 to -7.5 kg; whites: -3.8 to -8.2 kg).
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
This was not a systematic review, so study selection could be biased. Only 10 of 23 trials reported outcomes by race or considered race in analysis, so the review cannot fully describe African American participants' experience. Several trials did not report racial distribution or reported only White and non-White, so some race data are incomplete. Included trials differed in diet prescription, physical activity, and group or individual sessions, so findings cannot be pooled into one treatment effect. Trials shorter than 16 weeks were excluded, so some pilot or feasibility studies that reported race outcomes may be missing. The review excluded people with major co-morbidities such as diabetes, cancer, or osteoarthritis, so results may not apply to patients with those conditions. Socioeconomic status was not considered, so racial differences may be mixed with income or access factors.
The easy way to misread this
Do not conclude that telephone calls or culturally tailored support have been shown to equalize weight loss for African American patients. The review reports trial observations and author suggestions; it did not test these components, and at 18 months ORBIT showed no significant difference between intervention and control.