Evidence map›Paper›PMID 41482894›Full record

SynthesisNoise & health

Research Progress and Suggestions on the Noise Equal Energy Hypothesis: A Systematic Review and Meta-analysis.

Yang Li, LinJie Wu, JinZhe Li, HaiYing Liu, AnKe Zeng, JiaRui Xin, Wei Qiu, ChangYan Yu, XiaoXu Liu, MeiBian Zhang

Abstract readSystematic ReviewMeta-Analysis
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Noise & health. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

10 authors.

Yang LiNational Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
LinJie WuNational Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
JinZhe LiOccupational Health Institute, Beijing Center for Disease Prevention and Control, Beijing, China.
HaiYing LiuSchool of Public Health, Anhui Medical University, Hefei, Anhui, China.
AnKe ZengNational Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
JiaRui XinNational Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
Wei QiuAuditory Research Laboratory, State University of New York at Plattsburgh, New York, USA.
ChangYan YuNational Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
XiaoXu LiuNational Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
MeiBian ZhangNational Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aims to evaluate the applicability and limitations of the equal energy hypothesis (EEH) in assessing noise-induced hearing loss (NIHL) and investigate the role of the kurtosis parameter (reflecting noise temporal structure) in assessing NIHL, providing a basis for refining EEH theory. MATERIALS AND

methodsA systematic review and meta-analysis were conducted to summarize studies related to EEH, systematically collecting its development, validation, and revision suggestions. The weighted mean difference (WMD) and odds ratio (OR) of hearing loss caused by different types of noise were used to evaluate the role of noise kurtosis in the evaluation of NIHL.

resultsA total of 57 articles were included, containing experimental and cross-sectional studies. Evidence showed significant limitations in the EEH when assessing non-steady noise, leading to an underestimation of NIHL under equal energy conditions. Animal experiments verified a critical level for assessing NIHL when using the EEH, with ranges of 90-135 dB in chinchillas and 108-120 dB in guinea pigs. EEH could be revised in the frequency domain (spectrum) and time domain (e.g., kurtosis). Meta-analysis showed that in animal experiments, WMD for permanent threshold shifts (PTSs) at 2, 4, and 8 kHz (PTS at 2, 4, and 8 kHz) was 3.30 dB (95% confidence interval [95% CI]: 2.22-4.37); in population surveys, OR for high-frequency NIHL was 1.78 (95% CI: 1.36-2.32). Logistic regression analysis confirmed kurtosis as a risk factor for NIHL (P < 0.001). Kurtosis adjustment for cumulative noise exposure and equivalent sound level adequately improved the accuracy of hearing loss estimation.

conclusionThe EEH's limitations in assessing NIHL caused by non-steady noise can be remedied by adjusting noise energy metrics using kurtosis. Our findings suggest that EEH could be revised as an "equal energy and equal kurtosis hypothesis."

Indexed as

Hearing Loss, Noise-InducedNoiseAnimalsGuinea PigsHumansequal energy hypothesishearing lossnoise exposurereviewrisk factorworkplace

Identifiers

PMID41482894
PMCPMC12818499

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.