Evidence map›Paper›PMID 37938023›Full record

ArticleHeadache

Association between secondhand smoke exposure and severe headaches or migraine in never-smoking adults.

Junpeng Wu, Panpan Yang, Xiaodan Wu, Xiaoxuan Yu, Fanfang Zeng, Haitang Wang

Abstract read
PubMed Publisher
In one paragraph

Article in Headache. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
4.6field-weighted citation impact, top 4% of its field
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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Junpeng WuDepartment of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Panpan YangDepartment of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Xiaodan WuDepartment of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Xiaoxuan YuDepartment of Anesthesiology, Guangzhou Women and Children's Medical Center, Guangzhou, China.
Fanfang ZengDepartment of Anesthesiology, Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Guangzhou, China.
Haitang WangDepartment of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Southern Medical University · CNNanfang Hospital · CNGuangzhou Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe study aimed to examine the relationship between secondhand smoke (SHS) exposure and severe headaches or migraine in never-smoking adults verified by serum cotinine.

backgroundCurrent evidence about the association between self-reported SHS exposure and headaches or migraine is limited and contradictory. An important issue lies in the lack of actual SHS exposure assessment through biomarkers.

methodsWe conducted a cross-sectional study on 4560 never-smoking adults from the National Health and Nutrition Examination Survey (NHANES), 1999-2004. The SHS exposure was evaluated by measuring serum cotinine concentrations. The information regarding severe headaches or migraine was based on self-reporting.

resultsThe overall prevalence rate of severe headaches or migraine was 20% (919/4560). After adjusting for relevant covariates, we found that heavy SHS exposure (serum cotinine at 1 to 10 ng/mL) was positively associated with severe headaches or migraine (OR: 2.02, 95% CI [1.19, 3.43]); however, no significant association was found between low SHS exposure (serum cotinine at 0.05 to 0.99 ng/mL) and severe headaches or migraine (OR: 1.15, 95% CI [0.91, 1.47]). Restricted cubic spline analysis showed that the natural logarithm of serum cotinine had a linear relationship with severe headaches or migraine (p = 0.335 for nonlinearity). Stratified analysis indicated that individuals with a BMI of <25 (p < 0.001 for interaction) and sedentary activity (p = 0.016 for interaction) modified the relationship between SHS exposure and severe headaches and migraine. Even after altering the definition of SHS exposure, excluding drugs that might affect the metabolism of serum cotinine, and multiple imputation, our sensitivity analysis results remained stable.

conclusionsThe study demonstrated that heavy SHS exposure (serum cotinine at 1 to 10 ng/mL) had a significant positive association with severe headaches or migraine in never-smoking adults. Prospective studies are necessary to verify this relationship in the future.

Indexed as

Migraine DisordersTobacco Smoke PollutionAdultCotinineCross-Sectional StudiesHeadacheHumansNutrition SurveysProspective StudiesSmokingCotinineTobacco Smoke PollutionheadachesmigraineNational Health and Nutritional Examination Surveysecondhand smokeserum cotinine

Identifiers

PMID37938023
OpenAlexW4388500448

What OpenQuestion holds

Textmetadata
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.