Evidence map›Paper›PMID 38816946›Full record

ArticleAnnals of clinical and translational neurology2024

Tracking amyotrophic lateral sclerosis disease progression using passively collected smartphone sensor data.

Marta Karas, Julia Olsen, Marcin Straczkiewicz, Stephen A Johnson, Katherine M Burke, Satoshi Iwasaki, Amir Lahav, Zoe A Scheier, Alison P Clark, Amrita S Iyer and 3 more

Abstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2024. 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
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  8. Review
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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

13 authors.

Marta KarasDepartment of Biostatistics, Harvard T.H. Chan School of Public Health, Harvard University, 677 Huntington Ave., Boston, Massachusetts, 02115, USA.ORCID 0000-0001-5889-3970
Julia OlsenDepartment of Biostatistics, Harvard T.H. Chan School of Public Health, Harvard University, 677 Huntington Ave., Boston, Massachusetts, 02115, USA.
Marcin StraczkiewiczDepartment of Biostatistics, Harvard T.H. Chan School of Public Health, Harvard University, 677 Huntington Ave., Boston, Massachusetts, 02115, USA.
Stephen A JohnsonDepartment of Neurology, Mayo Clinic, 13400 E. Shea Blvd., Scottsdale, Arizona, 85259, USA.
Katherine M BurkeNeurological Clinical Research Institute and Sean M. Healey & AMG Center for ALS, Massachusetts General Hospital, 15 Parkman St #835, Boston, Massachusetts, 02114, USA.
Satoshi IwasakiMitsubishi Tanabe Pharma Holdings America, Inc., 525 Washington Blvd., Jersey City, New Jersey, 07310, USA.
Amir LahavMitsubishi Tanabe Pharma Holdings America, Inc., 525 Washington Blvd., Jersey City, New Jersey, 07310, USA.
Zoe A ScheierNeurological Clinical Research Institute and Sean M. Healey & AMG Center for ALS, Massachusetts General Hospital, 15 Parkman St #835, Boston, Massachusetts, 02114, USA.
Alison P ClarkNeurological Clinical Research Institute and Sean M. Healey & AMG Center for ALS, Massachusetts General Hospital, 15 Parkman St #835, Boston, Massachusetts, 02114, USA.
Amrita S IyerNeurological Clinical Research Institute and Sean M. Healey & AMG Center for ALS, Massachusetts General Hospital, 15 Parkman St #835, Boston, Massachusetts, 02114, USA.
Emily HuangDepartment of Statistical Sciences, Wake Forest University, Winston-Salem, North Carolina, 27106, USA.
James D BerryNeurological Clinical Research Institute and Sean M. Healey & AMG Center for ALS, Massachusetts General Hospital, 15 Parkman St #835, Boston, Massachusetts, 02114, USA.
Jukka-Pekka OnnelaDepartment of Biostatistics, Harvard T.H. Chan School of Public Health, Harvard University, 677 Huntington Ave., Boston, Massachusetts, 02115, USA.

Funding

The research reported in this paper was financially supported in part by a grant from Mitsubishi Tanabe Pharma Holdings America, Inc. (MTPHA).
6 · The paper itself

Abstract

backgroundPassively collected smartphone sensor data provide an opportunity to study physical activity and mobility unobtrusively over long periods of time and may enable disease monitoring in people with amyotrophic lateral sclerosis (PALS).

methodsWe enrolled 63 PALS who used Beiwe mobile application that collected their smartphone accelerometer and GPS data and administered the self-entry ALS Functional Rating Scale-Revised (ALSFRS-RSE) survey. We identified individual steps from accelerometer data and used the Activity Index to summarize activity at the minute level. Walking, Activity Index, and GPS outcomes were then aggregated into day-level measures. We used linear mixed effect models (LMMs) to estimate baseline and monthly change for ALSFRS-RSE scores (total score, subscores Q1-3, Q4-6, Q7-9, Q10-12) and smartphone sensor data measures, as well as the associations between them.

findingsThe analytic sample (N = 45) was 64.4% male with a mean age of 60.1 years. The mean observation period was 292.3 days. The ALSFRS-RSE total score baseline mean was 35.8 and had a monthly rate of decline of -0.48 (p-value <0.001). We observed statistically significant change over time and association with ALSFRS-RSE total score for four smartphone sensor data-derived measures: walking cadence from top 1 min and log-transformed step count, step count from top 1 min, and Activity Index from top 1 min.

interpretationSmartphone sensors can unobtrusively track physical changes in PALS, potentially aiding disease monitoring and future research.

Indexed as

AccelerometryAmyotrophic Lateral SclerosisDisease ProgressionSmartphoneAgedExerciseFemaleHumansMaleMiddle AgedMobile ApplicationsWalking

Identifiers

PMID38816946
PMCPMC11187949

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.