Examining intra- and inter-device reliability of pressure-mediated reflection spectroscopy in a multi-state sample of healthy adults.

ABSTRACT:

Objective

To examine the intra- and inter-device reliability of devices using pressure-mediated reflection spectroscopy (the Veggie Meter®).

Design

A cross-sectional research study was conducted across eight sites in the USA. Using two Veggie Meters® at each site, participants completed five, counter-balanced pairs of finger scans. Intra-device comparisons included intra-class correlation coefficients (ICC) and calculation of the CV and 95 % CI of each device/site; hypothesised to be ≤ 6 %. Inter-device comparisons included ICC, absolute relative differences (ARD) and 95 % CI, and equivalence; both hypothesised to be ≤ 10 %.

Setting

Eight sites across the USA.

Participants

Across sites, participants' (n 282) average age ranged 24·7-39·0 years; sex ranged

SUBMITTER: Sisson SB 

PROVIDER: S-EPMC12722093 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature