OTRCTDisability and health journal2017

Caregivers' effect on weight management in adults with intellectual and developmental disabilities.

L T Ptomey, C A Gibson, J Lee and 4 others

PMID 28215627

WHAT IT FOUND

The two diet groups did not differ significantly in weight loss over 18 months.

Caregiver type, family member or paid staff, also did not differ significantly in weight loss. One study partner had greater 6-month percentage weight loss than three or more partners.

Key findings

01Percent change in weight during the 18-month intervention was not significantly different between the enhanced Stop Light Diet and the conventional calorie-restricted diet (-7.4 ± 8.0 vs -6.7 ± 8.2; p = 0.68).

02Weight change did not differ significantly between adults supported by a family member and adults supported by a paid assistant during the 6-month weight loss period or the 18-month study.

03During the 6-month weight loss period, percent weight loss was greater for participants with 1 study partner (-6.5 ± 5.0%) than for those with 3 or more study partners (-2.5 ± 6.3%; p <0.05).

STILL TO COME

How it was doneWhat they foundWhat it means for OTs

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What it does not show

This was a secondary analysis of a trial that randomized diet assignment, not caregiver type, so caregiver comparisons are observational and not causal. The parent study was not specifically designed or powered to detect differences between family and paid caregiver groups or between caregiver hassles, uplifts, and self-efficacy groups. The caregiver groups were unequal: 38 participants had a family member as study partner and 108 had a paid assistant. Caregiver hassles, uplifts, and self-efficacy were self-reported, which can introduce responder bias. No demographic information about caregivers was collected, so it is unclear whether caregiver characteristics influenced support. Participants had mild to moderate intellectual and developmental disabilities, had to be able to walk, and had to communicate preferences, wants, and needs, so findings may not apply to adults with more severe disabilities, non-walkers, or those who cannot communicate these needs. The intervention included diet, monthly education, step counting, and caregiver support, so weight change cannot be attributed to caregiver type alone.

Declared interests

The authors declared no conflicts of interest. The supplied text does not state who funded the work.

The easy way to misread this

Do not conclude that having a family caregiver causes better weight management. The main family versus paid comparison was null, and this secondary analysis was not designed or powered to detect caregiver group differences.

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