Table 2Characteristics of Included Primary3 Clinical Studies

First Author, Publication Year, CountryStudy DesignPopulation CharacteristicsIntervention and Comparator(s)Clinical Outcomes, Length of Follow-Up
Randomized Study

Thomas 201612

US

Three-arm, parallel, unblinded RCT

Participants recruited between winter 2013 and spring 2014 from Meals-on-Wheels waitlists at eight sites

Eligibility criteria

None

Exclusion criteria

None

N = 376

baseline characteristics

Age (Mean)

Waitlist = 75.7 years

DDM= 77.4 years

WDM = 76.2 years

P > 0.05

Married (%)

Waitlist = 31.5

DDM= 18.9

WDM = 21.9

P < 0.05

Participates in groups (%)

Waitlist = 34.9

DDM = 22.5

WDM = 21.7

P < 0.05

Loneliness (Mean)

Waitlist = 3.5 (2.9)

DDM = 3.5 (2.7)

WDM = 3.1 (2.6)

P > 0.05

Interventions:

DDM

15 weeks of once daily (on weekdays) delivery of hot or chilled meals by program staff/volunteers

WDM

15 weeks of once-weekly delivery of 5 frozen meals by program staff/volunteers

Comparator:

Waitlist

Contact with Meals on Wheels staff or volunteers for T1 and T2 assessments. 15 weeks from T1 to follow-up call to schedule T2 assessment

Loneliness

Assessed with the 3-item UCLA Scale, which is a subset of items from the Revised UCLA Loneliness scale.

Responses range from 0 to 3, with higher numbers reflecting greater frequency of feeling lonely.

Responses were summed. Potential scores range from 0 to 9

The 3-item scale had acceptable reliability, as reported by the study authors (α =0.72)

Length of follow-up

15 weeks

Non-Randomized Studies

Denissen, 201711

The Netherlands

2-arm, non-randomized, controlled trial

Participants were recruited between November 2013 and December 2013 from home care organization Proteion

Eligibility criteria

Clients of Proteion; Aged ≥70 years; Home-dwelling; “unable to prepare their own dinners due to functional impairment” (p.371); consented to eat ≥4 delivered dinners per week

Exclusion criteria

Partner able to prepare healthy meals; chewing problems; severe malnutrition based on BMI (<18.5 kg/m2), “cancer or other serious conditions” (p.371), life expectancy < 6 months

N = 44

n = 25 intervention

n = 19 comparator

baseline characteristics

Unclear if statistically analyzed

Age (M years, (IQR))

MD = 83 (79, 89)

Control = 84 (81, 88)

Gender (n (%))

MD = female, 19 (76%); male, 6 (24%)

Control = female, 15 (78.9%); male, 4 (21.05%)

Partner (n (% yes))

MD = 7 (28.0%)

Control = 3 (15.8%)

Previous meal service (n (% yes)

MD = 9 (36.0%)

Control = 9 (47.4%)

Home care (self-care, medical) assistance (hours/week), mean (SD)

MD = 5.6 (3.6)

Control (4.1 (3.0)

Disability in, and instrumental activities of daily living; GARS-score, mean (SD)

MD = 44.1 (10.6)

Control = 40.6 (8.8)

Higher scores reflect greater disability

Scale range: 18-72

Intervention:

MD

3 months of once daily meal delivery on 4 to 7 days / week delivered by staff

Comparator:

Usual diet

“Participants in the control group were invited for an observational trajectory within the context of a care improvement project of the home care organization, and sustained their usual diet, also when they already used a meal service.” (p.371)

HRQoL

Assessed with the EQ-VAS subscale of the EQ-5D-3L

Participants rate their current health state from 0 (worst imaginable health state) to 100 (best imaginable health state)

Measurement properties were not reported.

GQoL

Assessed with the overall valuation of life subscale of the Rotterdam Symptom Checklist. Participants indicated how well they felt during the past week on a scale ranging from 0 (very bad) to 6 (very good). Scores were transformed to a 100-point scale. Higher scores reflected better GQoL.

Measurement properties were not reported.

Length of follow-up

3 months (T2) and 6 months (T3)

Wright 201513

US

Single-arm pretest–posttest design

Participants were recruited from Meals-on-Wheels enrollment list between January and April 2014

Eligibility criteria

Aged ≥55 years; Received ≥3 home-delivered meals / week; Spoke English; Telephone access; Able to consent and answer survey questions

Exclusion criteria

none

N = 62

Baseline characteristics

Age (years)

Mean= 74.11

Gender (%))

female, 666;

male, 34

Nutrition status (%)

Normal = 8.1

At nutritional risk = 58.1

Malnourished = 33.9

Intervention:

2 months of once / day, ≥ 4 times / week single meal delivery

Well-Being

Assessed with the WHO-5 questionnaire. Participants recorded responses on a scale from 0 (at no time) to 5 (all the time). Summed scores ranged from 0 (worst possible) to 25 (good).

Measurement properties were not reported.

Loneliness and social isolation

Assessed with the 3-Item Loneliness Scale. Participants recorded their feelings on a scale from 0 (never) to 3 (often). Summed scores range from 3 (no social isolation) to 12 (worst levels of loneliness).

Measurement properties were not reported.

Length of follow-up

2 months

BMI = body mass index; DDM = daily delivered meals; EQ-5D-3L = EuroQoL Group-5 dimension-3 level questionnaire; EQ-VAS = EuroQoL Group visual analogue scale; GARS = Groningen activity restriction scale; GQoL = global quality of life; HRQoL = health related quality of life; IQR = interquartile ratio); kg/m2 = kilogram per square metre; MD = meal delivery; RCT = randomized controlled trial; T2 = first follow-up; T3 = second follow-up; UCLA = University of California Las Angeles; WDM = weekly delivered meals; WHO-5 = World Health Organization 5-Item Well-Being Index;

From: Meal Delivery Programs for Community Seniors: A Review of Clinical Effectiveness

Cover of Meal Delivery Programs for Community Seniors: A Review of Clinical Effectiveness
Meal Delivery Programs for Community Seniors: A Review of Clinical Effectiveness [Internet].
Gray C, Argáez C.
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