Evidence map›Paper›PMID 29954723›Full record

ArticleJMIR mHealth and uHealth2018

Association Between Self-Reported and Objective Activity Levels by Demographic Factors: Ecological Momentary Assessment Study in Children.

Jennifer Zink, Britni R Belcher, Eldin Dzubur, Wangjing Ke, Sydney O'Connor, Jimi Huh, Nanette Lopez, Jaclyn P Maher, Genevieve F Dunton

Abstract read
In one paragraph

Article in JMIR mHealth and uHealth, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Longitudinal associations of screen time, physical activity, and sleep duration with body mass index in U.S. youth.The international journal of behavioral nutrition and physical activity · 2024
    Article
  3. Article
  4. Article
  5. Observational
  6. Article
  7. Article
  8. Article
  9. Article
  10. Adolescents' sedentary time, affect, and contextual factors: An ecological momentary assessment study.The international journal of behavioral nutrition and physical activity · 2021
    Article
  11. Article
  12. Article
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Jennifer Zink *Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States.ORCID http://orcid.org/0000-0002-8308-1760
Britni R Belcher *Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States.ORCID http://orcid.org/0000-0001-7965-7520
Eldin Dzubur *Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States.ORCID http://orcid.org/0000-0002-3248-5327
Wangjing Ke *Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States.ORCID http://orcid.org/0000-0001-5118-2500
Sydney O'Connor *Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States.ORCID http://orcid.org/0000-0003-0146-562X
Jimi Huh *Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States.ORCID http://orcid.org/0000-0002-2727-5966
Nanette Lopez *Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States.ORCID http://orcid.org/0000-0001-9063-6368
Jaclyn P Maher *Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States.ORCID http://orcid.org/0000-0002-1276-4361
Genevieve F Dunton *Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States.ORCID http://orcid.org/0000-0002-4129-3829

Funding

Training grant for Cancer Control and EpidemiologyT32CA009492 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI PENTZ, MARY ANN · 1985 to 2019
$7.4M
Maternal Stress and Children's Obesity RiskR01HL119255 · NHLBI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI DUNTON, GENEVIEVE FRIDLUND · 2013 to 2017
$4.0M
NCI NIH HHS T32 CA009492NHLBI NIH HHS R01 HL119255
6 · The paper itself

Abstract

backgroundTo address the limitations of the retrospective self-reports of activity, such as its susceptibility to recall bias, researchers have shifted toward collecting real-time activity data on mobile devices via ecological momentary assessment (EMA). Although EMA is becoming increasingly common, it is not known how EMA self-reports of physical activity and sedentary behaviors relate to the objective measures of activity or whether there are factors that may influence the strength of association between these two measures. Understanding the relationship between EMA and accelerometry can optimize future instrument selection in studies assessing activity and health outcomes.

objectiveThe aim of this study was to examine the associations between EMA-reported sports or exercise using the accelerometer-measured moderate-to-vigorous physical activity (MVPA) and EMA-reported TV, videos, or video games with the accelerometer-measured sedentary time (ST) in children during matched 2-h windows and test potential moderators.

methodsChildren (N=192; mean age 9.6 years; 94/192, 49.0% male; 104/192, 54.2% Hispanic; and 73/192, 38.0% overweight or obese) wore an accelerometer and completed up to 7 EMA prompts per day for 8 days during nonschool time, reporting on past 2-h sports or exercise and TV, videos, or video games. Multilevel models were used to assess the relationship between the accelerometer-measured ST and EMA-reported TV, videos, or video games. Given the zero-inflated distribution of MVPA, 2-part models were used assess the relationship between the accelerometer-measured MVPA and EMA-reported sports or exercise.

resultsEMA-reported TV, videos, or video games were associated with a greater accelerometer-measured ST (beta=7.3, 95% CI 5.5 to 9.0, P<.001). This relationship was stronger in boys (beta=9.9, 95% CI 7.2 to 12.6, P<.001) than that in girls (beta=4.9, 95% CI 2.6 to 7.2, P≤.001). EMA-reported sports or exercise was associated with a greater accelerometer-measured MVPA (zero portion P<.001; positive portion P<.001). This relationship was stronger on weekends, in older children, and in non-Hispanic children (zero portion all P values<.001; positive portion all P values<.001).

conclusionsEMA reports highly relate to accelerometer measures. However, the differences in the strength of association depending on various demographic characteristics suggest that future research should use both EMA and accelerometers to measure activity to collect complementary activity data.

Indexed as

childrenmeasurementmobile devicesphysical activitysedentary behavior

Identifiers

PMID29954723
PMCPMC6043732

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.