ArticleEnvironmental science & technology2025
Individual-Level Exposure to Light at Night and Sleep Health: A Comparison between Real-Time Mobility-Based Measurements and Indoor Residence-Based Measurements.
Article in Environmental science & technology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Light at night (LAN) disrupts human circadian rhythms and impairs sleep health. However, inconsistent findings across observational studies using indoor residence-based measurements (IRBM) and real-time mobility-based measurements (RMBM) raise methodological concerns. This study investigated IRBM and RMBM of LAN exposure and their associations with sleep health, examining sex as a potential moderator. Data from 484 individuals (aged 18-65) over 1,748 nights were collected in Hong Kong, incorporating objective (actigraphy) and subjective (sleep diary) measures. Concurrent LAN exposure was quantified via LUX29TK portable light meter (IRBM) and GENEActiv wrist-worn actigraph-embedded luxmeter (RMBM). Generalized linear mixed models adjusted for sociodemographic, temporal, geographic, physical activity, health status, and lifestyle covariates. Initial analyses revealed differences between IRBM and RMBM with inconsistent effects. For LAN across astronomical night (sunset to sunrise), covariate adjustment attenuated contextual discrepancies in IRBM models. Both methods demonstrated negative associations between LAN and objective sleep duration and efficiency, with no effects on subjective sleep or sex moderation. For LAN across biological night (sleep onset to wake), RMBM exhibited instrumental error, yielding divergent associations. These findings reveal how contextual and instrumental errors between IRBM and RMBM across analysis windows explain inconsistencies in prior LAN-sleep research, informing reliable exposure quantification in sleep studies.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.