ArticleEpidemiology and health2022
Effect of Pap smears on the long-term survival of cervical cancer patients: a nationwide population-based cohort study in Korea.
Article in Epidemiology and health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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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.
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Who cites it
4 citing papers in PubMed, 5 citations in OpenAlex.
- Current Status of the National Cancer Screening Program in Korea: History, Achievements, and Future Directions.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2025Article
- Age and socioeconomic disparities in cervical cancer incidence and mortality: a SEER-based analysis.Frontiers in public health · 2025Article
- Time to death from cervical cancer and its predictors in hospitalized patients: a survival approach study in Mato Grosso, Brazil.World journal of surgical oncology · 2024Article
- The significance of uterine artery embolization in the treatment of utero-cervical cancer: A single case report.Clinical case reports · 2024Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThis study aimed to investigate the effect of cervical cancer screening by Papanicolaou (Pap) smears on the long-term survival of cervical cancer patients.
methodsWe constructed a retrospective cohort of 14,903 women diagnosed with invasive cancer or carcinoma in situ in 2008 and 2009 and followed up until December 31, 2019, by using individual-level data from 3 national databases of the Korean National Cancer Screening Program, the Korean Central Cancer Registry, and death certificates. Cox proportional-hazards regression was used to investigate the effect of cervical cancer screening on mortality.
resultsIn total, 12,987 out of 14,867 patients (87.4%) were alive at the end of the follow-up period (median: 10.5 years). Screened patients had a 38% lower risk of cervical cancer death than never-screened patients (hazard ratio [HR], 0.62; 95% confidence interval [CI], 0.54 to 0.70). Screening was associated with 59% and 35% lower risks of death, respectively, in screened patients with localized and regional stages. Furthermore, lower HRs among women who received screening were observed in all age groups, especially women aged 50-59 years (HR, 0.54; 95% CI, 0.42 to 0.69). The lowest HR for cervical cancer death was reported among patients screened within the past 2 years (HR, 0.54; 95% CI, 0.47 to 0.63), and the HRs increased with increasing time intervals.
conclusionsPap smear screening significantly reduced the risk of cervical cancer-specific death in Korean women across all cancer stages.
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