Effects of a dietetic treatment in older, undernourished, community-dwelling individuals in primary care: a randomized controlled trial.
OBJECTIVE
Undernutrition is a prevalent problem in older, community-dwelling individuals. Aim of this study was to determine the effects of a dietetic treatment in older, undernourished, community-dwelling individuals.


METHODS
A parallel randomized controlled trial was performed in 146 non-institutionalized, undernourished individuals aged ≥65 years in primary care. Participants were randomly assigned to the intervention (referral to and treatment by a trained dietitian) or control group (no referral). Body weight, physical performance, handgrip strength, energy intake, protein intake and fat-free mass were assessed at baseline, after 3 months and after 6 months.


RESULTS
All randomized participants (n = 146) were included in the intention-to-treat generalized estimating equations analysis (72 in intervention and 74 in control group). No treatment effect was found on the primary outcomes body weight (β = 0.49 kg, 95% CI: -0.15-1.12), physical performance (β = 0.15 points, 95% CI: -0.33-0.64) and handgrip strength (β = 0.49 kg, 95% CI: -0.62-1.60). Furthermore, no treatment effect was found for the secondary outcomes. Predefined subgroup analyses showed a treatment effect on body weight in physically active participants (β = 1.25 kg, 95% CI: 0.70-2.11) and not in inactive participants (β = -0.20 kg, 95% CI: -1.16-0.75).


CONCLUSIONS
After 6 months, a dietetic treatment by trained dietitians does not lead to increases in body weight and physical functioning in older, undernourished, community-dwelling individuals.
Department of Health Sciences and the EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands, jannekeschilp@hotmail.com.
Janneke
J
Schilp
Hinke M
HM
Kruizenga
Hanneke A H
HA
Wijnhoven
Jaap J
JJ
van Binsbergen
Marjolein
M
Visser
D000368:Aged; D000369:Aged, 80 and over; D001835:Body Weight; D015930:Diet Records; D004046:Dietetics; D002149:Energy Intake; D005260:Female; D005500:Follow-Up Studies; D018737:Hand Strength; D006801:Humans; D008297:Male; D044342:Malnutrition / Q000178:diet therapy*; D009426:Netherlands; D015596:Nutrition Assessment; D009752:Nutritional Status; D011320:Primary Health Care; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D016896:Treatment Outcome