Comparison of Dietary Protein Intake Patterns and Inadequate Protein Intake in Older Adults Among Countries

Completed

• Conditions: Aging
• Interventions: Other: No intervention

• Registration Number: NCT04598412
• Lead Sponsor: Centro Universitario de Ciencias de la Salud, Mexico

Brief Summary

The researchers will compare protein intake patterns per day and per meal among older adults from different countries. The analysis will also compare the proportion of inadequate protein intake per day (different cut points), per meal (breakfast, lunch, dinner), and the number of meals per day that reach an adequate protein content.

Detailed Description

There will be a literature review in search of other studies reporting protein intake patterns in older adults. These studies must report total, and per-meal protein intake, evaluated through 24-h dietary recalls, food diaries or food frequency questionnaires. Afterwards, the researchers will contact the authors for data requests and analyze the data; these data will also include some demographic variables (e.g. sex, age, height, weight). Once the data are obtained, the patterns of protein intake will be compared among countries with an ANOVA test. As it is very likely that variances and/or sample sizes will be unequal, a Welch's correction and a Dunnett test for post hoc analyses will be performed. This analysis is going to be performed for the whole sample and by sex. Similarly, the proportion of older adults that do not reach the recommended amounts of protein in a daily (0.8, 1.0, 1.2 g/kg/day) and per meal basis (30 g, 0.4 g/kg) will be calculated. These proportions will be compared among countries with a chi-squared test and employing a z-test for proportions (with Bonferroni adjustment) to identify pairwise differences.

Study Timeline

• Study Start: 2018-08-19
• Primary Completion: 2019-12-27
• Study Completion: 2020-01-10
• Status Verified: 2020-10
• Study First Submitted: 2020-10-16
• Study First Submitted QC: 2020-10-16
• Study First Posted: 2020-10-22
• Last Update Submitted: 2020-10-23
• Last Update Posted: 2020-10-26

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 522

Inclusion Criteria

• Community dwelling

Exclusion Criteria

• Incomplete data registries

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Northamerican sample	No intervention	Aged \>60 years (n = 200)
British sample	No intervention	Aged \>70 years (n = 38)
German sample	No intervention	Aged \>75 years (n = 97)
Mexican sample	No intervention	Aged \>60 years (n = 187)

Primary Outcome Measures

Name	Time	Method
Meals per day with adequate protein content	One day	The number of meals per day that had enough protein (\>30 g/meal, or \>0.4 g/kg/meal).
Inadequate protein intake per day	One day	Percentage of older adults that did not eat enough protein per day according to the following cut points: 0.8, 1.0, and 1.2 g/kg/d
Inadequate protein intake per meal	One day	Percentage of older adults that did not eat enough protein per meal according to the following cut points: 30 g/meal, or 0.4 g/kg/meal

Trial Locations

Locations (1)

Instituto de Ciencias Aplicadas a la Actividad Física y al Deporte; 🇲🇽 Guadalajara, Jalisco, Mexico