Accuracy of a Photo-based Smartphone Application to Assess Salivary Cortisol Sampling Time in Adolescents

Accurate assessment of saliva sampling time is essential for studies that collect cortisol sample in ambulatory settings. This study examined the sampling time assessed by user-submitted photos via a mobile application (ZEMI) compared with MEMSCaps™. Intra-class correlation coefficient (ICC) of the...

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Published in:Field methods 2023-08, Vol.35 (3), p.271-284
Main Authors: Fred Wen, Cheng K., Schneider, Stefan, Weigensberg, Marc J., Weerman, Bas, Spruijt-Metz, Donna
Format: Article
Language:English
Subjects:
Accuracy
Adolescents
Anxiety
Biochemistry
Computer Software
Grade 10
Grade 11
Handheld Devices
High School Students
Intervention
Measurement
Photography
Physiology
Sampling
Stress Variables
Telecommunications
Time
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container_end_page 284
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container_title Field methods
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creator Fred Wen, Cheng K.
Schneider, Stefan
Weigensberg, Marc J.
Weerman, Bas
Spruijt-Metz, Donna
description Accurate assessment of saliva sampling time is essential for studies that collect cortisol sample in ambulatory settings. This study examined the sampling time assessed by user-submitted photos via a mobile application (ZEMI) compared with MEMSCaps™. Intra-class correlation coefficient (ICC) of the time differences between when the 16 adolescents in the study were prompted to collect the sample and (1) when the MEMSCaps™ was opened (TimeM), and (2) when photos of the corresponding sample were submitted (TimeZ) was computed to evaluate the agreement of sampling times. The average TimeM and TimeZ 12.06 ± 65.80 and 16.13 ± 52.07 minutes, respectively. The pooled ICC between TimeM and TimeZ was 0.986 (95% CI: 0.959–0.995), suggesting excellent correspondence between the two measurements.
doi_str_mv 10.1177/1525822X221141226
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source ERIC; Sociological Abstracts; SAGE
subjects Accuracy
Adolescents
Anxiety
Biochemistry
Computer Software
Grade 10
Grade 11
Handheld Devices
High School Students
Intervention
Measurement
Photography
Physiology
Sampling
Stress Variables
Telecommunications
Time
title Accuracy of a Photo-based Smartphone Application to Assess Salivary Cortisol Sampling Time in Adolescents
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