Definition and research guide
This page combines a MeSH definition, publication statistics and selected research abstracts. It is a starting point for reading the literature, not a medical textbook or a systematic evidence review.
Content available: 3 complete abstracts (927 words), 9 references. Full article text is not stored or reproduced here; follow the PMID, DOI or PMC links to read the original sources and their access terms.
Definition
A systematic collection of factual data pertaining to health and disease in a human population within a given geographic area.
Definition: NLM Medical Subject Headings (MeSH) scope note (Public domain (U.S. National Library of Medicine); attribution requested). View the MeSH record.
Also known as: Health Survey; Survey, Health; Surveys, Health; Abortion Surveys; Abortion Survey; Survey, Abortion; Surveys, Abortion.
Where it fits in the MeSH classification
- Broader topics
- Surveys and Questionnaires
- Narrower topics
- Behavioral Risk Factor Surveillance System; Dental Health Surveys; Health Status Indicators; Mass Screening; Population Surveillance
Research landscape
PubMed indexes 685,025 records tagged with the MeSH heading “Health Surveys” (counts retrieved 2026-10-29). 123,250 of them (18.0%) were published from 2020 onward, and the busiest period so far is 2010-2019 with 268,078 records.
Reviews account for 67,910 records (9.9%) and meta-analyses for 6,045. Randomized controlled trials number 31,973 (4.7%) as a share of all records on the topic.
Show the data
| Period | Records |
|---|---|
| through 1999 | 93,570 |
| 2000-2009 | 200,127 |
| 2010-2019 | 268,078 |
| 2020 onward | 123,250 |
Publication-type chart data
| Type | Records | Share |
|---|---|---|
| Reviews | 67,910 | 9.9% |
| Meta-analyses | 6,045 | 0.9% |
| Randomized controlled trials | 31,973 | 4.7% |
Method: PubMed query "Health Surveys"[MeSH Terms] with publication-type and date filters, retrieved 2026-10-29.
Reading the evidence in clinical research
Research methods determine how much a result can be trusted. Randomized trials guard against confounding, systematic reviews and meta-analyses combine many studies, and observational designs are valuable but can show only association. Reporting standards, trial registration and pre-specified outcomes reduce bias. When reading about a method, ask what problem it is designed to solve and which problems it does not solve.
Evidence from open-access studies
These open-access studies come from PubMed’s best-match results for this heading (papers whose main topic it is), ranked here by citation count, with one recent addition. Each abstract is reproduced in full under its recorded open licence so that you can read the authors’ own words. They illustrate the literature; they are not a systematic summary of it. Citation counts measure attention, not reliability or clinical benefit.
| Study / authors | Year | Source label / design | Europe PMC citations | Licence / source |
|---|---|---|---|---|
| Extracorporeal CO2 elimination for acute exacerbation of severe COPD requiring invasive mechanical ventilation: a randomized controlled trial (the X-COPD trial) | 2026 | Randomized controlled trial Design not recorded in structured metadata | 1 | cc by PMID 42693471 · DOI · PMC13543343 |
| Do conventional intracerebral hemorrhage functional scores apply to mild-to-moderate hemorrhage? | 2026 | Research article Design not recorded in structured metadata | 1 | cc by PMID 42656267 · DOI · PMC13506375 |
| Financial toxicity among patients with lung cancer: a systematic review and meta-analysis | 2026 | Meta-analysis Design not recorded in structured metadata | 1 | cc by PMID 42661720 · DOI · PMC13518355 |
Extracorporeal CO2 elimination for acute exacerbation of severe COPD requiring invasive mechanical ventilation: a randomized controlled trial (the X-COPD trial) [1]
Abstract reading summary — source excerpts
- Opening excerpt
- RationaleAcute exacerbations of chronic obstructive pulmonary disease (AE-COPD) requiring invasive mechanical ventilation (IMV) are associated with high mortality and long-term disability.
- Closing excerpt
- Adequately powered multicenter trials are warranted.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (290 words)
RationaleAcute exacerbations of chronic obstructive pulmonary disease (AE-COPD) requiring invasive mechanical ventilation (IMV) are associated with high mortality and long-term disability. Extracorporeal CO₂ removal (ECCO₂R) using modern high-capacity devices may facilitate early endotracheal extubation and reduce IMV-related complications.ObjectivesTo evaluate whether ECCO2R-facilitated early extubation improves clinical outcomes compared with standard IMV in patients with severe AE-COPD requiring IMV.MethodsAdults with acute hypercapnic respiratory failure due to AE-COPD requiring IMV who failed or were ineligible for extubation within 24 hours of intubation were randomized to ECCO2R or no ECCO2R. The primary endpoint was a composite of death or severe disability at day 60.Results18 patients were randomized before the trial was terminated early by the sponsor for financial reasons (planned enrollment: 192). The primary composite endpoint occurred in 0/8 ECCO2R-treated patients versus 3/9 evaluable IMV-treated patients (33%; risk difference -33%; 95% CI -65% to 6%; p = 0.21). IMV duration was shorter in the ECCO2R group (7.1 ± 2.0 vs. 24.3 ± 21.4 days; median 7.0 vs. 16.0 days; mean difference -17.2 days; p = 0.043), yielding, in a post hoc exploratory analysis, more overall device-free days at day 29 (17 ± 4 device-support-free days compared with 8 ± 7 days in the IMV group (p = 0.011)). Ventilator-associated pneumonia occurred in 0 versus 3 patients (37.5%), respectively. Sedation was discontinued earlier in the ECCO₂R group. Severe bleeding occurred in one ECCO₂R-treated patient (12.5%).ConclusionsIn this prematurely terminated trial, ECCO₂R-facilitated early extubation using a device with a capacity to eliminate more than 50% of the average CO2 production, was associated with a shorter duration of invasive mechanical ventilation. Numerical trends favored ECCO2R across several secondary outcomes, although interpretation is limited by premature termination and the very small sample size. Adequately powered multicenter trials are warranted.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 42693471 · DOI · PMC13543343
Do conventional intracerebral hemorrhage functional scores apply to mild-to-moderate hemorrhage? [2]
Abstract reading summary — source excerpts
- Opening excerpt
- BackgroundConventional intracerebral hemorrhage (ICH) functional scores are typically developed based on clinical factors for assessing mortality risk, and their applicability in evaluating functional outcomes in patients with the specific hemorrhagic subtype of mild to moderate ICH(MTM-ICH) remains unclear.
- Closing excerpt
- In contrast, conventional ICH functional scores demonstrate certain limitations when assessing this specific hemorrhage subtype.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (350 words)
BackgroundConventional intracerebral hemorrhage (ICH) functional scores are typically developed based on clinical factors for assessing mortality risk, and their applicability in evaluating functional outcomes in patients with the specific hemorrhagic subtype of mild to moderate ICH(MTM-ICH) remains unclear. Therefore, we aimed to construct a nomogram model to predict early functional dependence in this patient population and to validate three previous general ICH functional scores.MethodsWe conducted a retrospective analysis of data from 575 patients with MTM-ICH (GCS score ≥ 9) treated at our hospital between January 2018 and July 2025. The baseline demographic information, clinical characteristics, and clinical outcomes were collected. Early functional dependence was defined as a modified Rankin Scale (MRS) score ≥ 3 at discharge or 30 days after ICH. Least absolute shrinkage and selection operator (LASSO) and stepwise logistic regression analyses were used to screen for risk factors for early functional dependence and construct a predictive model. The model was visualized using a nomogram, and its predictive performance was compared with three existing ICH functional scores (FUNC, ICH-GS and ICH-FOS). Internal validation of the nomogram was performed using a 10-fold cross-validation combined with bootstrap resampling.ResultsAmong 575 patients with MTM-ICH, 198 (34.4%) developed early functional dependence. LASSO and stepwise logistic regression analyses identified six independent predictors: age, admission GCS score, hematoma volume, thalamic hemorrhage, basal ganglia hemorrhage, and mechanical ventilation. The nomogram based on these factors demonstrated good calibration and superior predictive performance compared to three existing ICH functional scores (AUC = 0.856 for our nomogram, 0.579 for FUNC, 0.601 for ICH-GS, and 0.714 for ICH-FOS, respectively). The decision curve analysis further demonstrated that the model had greater net benefit than the three previous general ICH functional scores. Internal validation confirmed the model's stability and generalizability (10-fold cross-validation mean: 0.846; bootstrap-corrected C-index: 0.844).ConclusionAmong patients with MTM-ICH, advanced age, lower admission GCS score, larger hematoma volume, thalamic or basal ganglia hemorrhage, and mechanical ventilation were associated with a higher risk of early functional dependence. The nomogram developed based on these factors demonstrated high predictive performance. In contrast, conventional ICH functional scores demonstrate certain limitations when assessing this specific hemorrhage subtype.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 42656267 · DOI · PMC13506375
Financial toxicity among patients with lung cancer: a systematic review and meta-analysis [3]
Abstract reading summary — source excerpts
- Opening excerpt
- BackgroundLung cancer imposes a substantial global health burden.
- Closing excerpt
- Standardized longitudinal assessment and prospective evaluation of risk-stratified interventions are warranted.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (287 words)
BackgroundLung cancer imposes a substantial global health burden. Although advances in treatment have improved outcomes, increasingly prolonged and complex care may impose considerable financial pressure on patients and their families. We systematically synthesized evidence on financial toxicity (FT) and its associated factors among patients with lung cancer.MethodsPubMed, Embase, the Cochrane Library, and Scopus were systematically searched through November 2025 for observational studies evaluating FT in patients with lung cancer. Associated factors were synthesized qualitatively and mapped using a harvest plot. Random-effects models were used to pool study-specific FT proportions and mean COST-based scores. Exploratory subgroup analyses were conducted by country income level, disease stage/treatment setting, and COST-based FT threshold. Heterogeneity was assessed using Cochran's Q and I² statistics. Prediction intervals and leave-one-out analyses were used to evaluate variability and robustness.ResultsEighteen studies were included. The pooled proportion of patients meeting study-specific FT definitions across eight studies was 0.55 (95% CI, 0.43-0.66), while the pooled mean COST-based score across ten studies was 22.91 (95% CI, 20.57-25.25). The pooled FT proportion was numerically lower in high-income than in upper-middle-income countries (0.47 vs 0.61; p = 0.171). FT proportions differed by disease stage/treatment setting (advanced/systemic treatment, 0.50; mixed/all-stage populations, 0.67; surgery-dominant populations, 0.42; p = 0.031). No difference was observed between studies using COST-based thresholds of 21-22 and 23-25 (p = 0.999). Lower income, inadequate insurance protection, employment disruption, limited savings, and greater out-of-pocket burden were recurring correlates of worse FT. Substantial heterogeneity persisted across analyses.ConclusionFT represents an important but highly context-dependent burden among patients with lung cancer. Given the substantial heterogeneity and predominantly cross-sectional evidence, the pooled estimates should be interpreted as exploratory summaries rather than universally applicable benchmarks. Standardized longitudinal assessment and prospective evaluation of risk-stratified interventions are warranted.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 42661720 · DOI · PMC13518355
Key reviews and meta-analyses
The most cited review-type papers among PubMed’s best-match results for this heading, listed with bibliographic details only. Follow the links for the full text and access terms.
- Research article Causes of blindness and vision impairment in 2020 and trends over 30 years, and prevalence of avoidable blindness in relation to VISION 2020: the Right to Sight: an analysis for the Global Burden of Disease Study [4]
- Research article Global Prevalence of Diabetic Retinopathy and Projection of Burden through 2045: Systematic Review and Meta-analysis [5]
- Research article Trends in prevalence of blindness and distance and near vision impairment over 30 years: an analysis for the Global Burden of Disease Study [6]
- Research article Hearing loss prevalence and years lived with disability, 1990-2019: findings from the Global Burden of Disease Study 2019 [7]
- Research article Association Between Fibrosis Stage and Outcomes of Patients With Nonalcoholic Fatty Liver Disease: A Systematic Review and Meta-Analysis [8]
- Research article Estimates of the global burden of cervical cancer associated with HIV [9]
References
- Karagiannidis C, Riera J, Blanco-Schweizer P, Strassmann S, Merten M, Brodie D, et al.. Extracorporeal CO2 elimination for acute exacerbation of severe COPD requiring invasive mechanical ventilation: a randomized controlled trial (the X-COPD trial). . 2026. PMID 42693471 · DOI · PMC13543343
- Chen A, Peng J, Guo L, Zhou R. Do conventional intracerebral hemorrhage functional scores apply to mild-to-moderate hemorrhage?. . 2026. PMID 42656267 · DOI · PMC13506375
- Jiang M, Wang F, Liu Y, Hu Q, Zhao L, Xiong Y, et al.. Financial toxicity among patients with lung cancer: a systematic review and meta-analysis. . 2026. PMID 42661720 · DOI · PMC13518355
- GBD 2019 Blindness and Vision Impairment Collaborators, Vision Loss Expert Group of the Global Burden of Disease Study. Causes of blindness and vision impairment in 2020 and trends over 30 years, and prevalence of avoidable blindness in relation to VISION 2020: the Right to Sight: an analysis for the Global Burden of Disease Study. Lancet Glob Health. 2021. PMID 33275949 · DOI · PMC7820391
- Teo ZL, Tham YC, Yu M, Chee ML, Rim TH, Cheung N, et al.. Global Prevalence of Diabetic Retinopathy and Projection of Burden through 2045: Systematic Review and Meta-analysis. Ophthalmology. 2021. PMID 33940045 · DOI
- GBD 2019 Blindness and Vision Impairment Collaborators, Vision Loss Expert Group of the Global Burden of Disease Study. Trends in prevalence of blindness and distance and near vision impairment over 30 years: an analysis for the Global Burden of Disease Study. Lancet Glob Health. 2021. PMID 33275950 · DOI · PMC7820390
- GBD 2019 Hearing Loss Collaborators. Hearing loss prevalence and years lived with disability, 1990-2019: findings from the Global Burden of Disease Study 2019. Lancet. 2021. PMID 33714390 · DOI · PMC7960691
- Taylor RS, Taylor RJ, Bayliss S, Hagström H, Nasr P, Schattenberg JM, et al.. Association Between Fibrosis Stage and Outcomes of Patients With Nonalcoholic Fatty Liver Disease: A Systematic Review and Meta-Analysis. Gastroenterology. 2020. PMID 32027911 · DOI
- Stelzle D, Tanaka LF, Lee KK, Ibrahim Khalil A, Baussano I, Shah ASV, et al.. Estimates of the global burden of cervical cancer associated with HIV. Lancet Glob Health. 2021. PMID 33212031 · DOI · PMC7815633
About this article
- Sources
- NLM Medical Subject Headings (definition, synonyms); NCBI PubMed (counts, identifiers); Europe PMC (open-access abstracts and citation counts).
- Verification
- Every reference was resolved against PubMed on 2026-10-31; title, year and DOI matched.
- Review state
- automated source verified; no human expert review has been recorded yet.
- Version
- 1, last updated 2026-10-29.
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Evidence strength
EvidenceHelix's computed view of the study designs behind this topic: how common meta-analyses, randomized trials and reviews are, how recent the literature is, and a plain-language reading. It describes the design mix of the literature. It is not a quality appraisal of any study, and it is not medical advice.