ArticleWorld journal of gastroenterology2014
Seasonal variations of acute appendicitis and nonspecific abdominal pain in Finland.
Article in World journal of gastroenterology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04407117 (Change in the Incidence of Appendicitis in a Controlled Environment During the National Lockdown Throughout the COVID-19 Pandemic), which is not on this map. Cited by 31 papers, 1 of them a synthesis that pooled it.
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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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Change in the Incidence of Appendicitis in a Controlled Environment During the National Lockdown Throughout the COVID-19 Pandemic
Who cites it
31 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Diagnosis and management of acute appendicitis. EAES consensus development conference 2015.Surgical endoscopy · 2016Guideline
- Traumatic appendicitis: A case report and literature review.Trauma case reports · 2026Article
- Meteorological factors and the risk of complicated appendicitis in pediatric patients: a nationwide multicenter study from Turkey.Pediatric surgery international · 2026Article
- CT grading combined with inflammatory markers for predicting the efficacy of conservative treatment in acute appendicitis.Clinics (Sao Paulo, Brazil) · 2026Article
- A novel combined neutrophil-platelet score for diagnosing complicated appendicitis: a retrospective and prospective cohort study.Acta cirurgica brasileira · 2026Article
- Article
- Surgical site infection following appendectomy in children.Scientific reports · 2025Article
- Appendicitis burden, trends, and inequalities in Europe, 1990-2019: a population-based study.Gastroenterology report · 2025Article
- Retrospective Study on the Association Between Climate Factors and Infant Colic in Beijing (2021-2022).Journal of multidisciplinary healthcare · 2024Article
- A Study of Misconceptions About Appendicitis Among the Resident Population of the Aseer Region.Cureus · 2023Article
- Accuracy of computed tomography in staging acute appendicitis and its impact on surgical outcome and strategy: a multi-center retrospective case-control study.La Radiologia medica · 2023Article
- Impacts of short-term air pollution exposure on appendicitis admissions: Evidence from one of the most polluted cities in mainland China.Frontiers in public health · 2023Article
- Exploring the Trends of Acute Appendicitis Following Recovery or Vaccination From COVID-19.The Journal of surgical research · 2022Article
- Association of Appendicitis Incidence With Warmer Weather Independent of Season.JAMA network open · 2022Article
- Ambulatory Laparoscopic Appendectomy: Does the Conventional Approach Need a Reappraisal?Cureus · 2022Article
- COVID-19 pandemic changed the management and outcomes of acute appendicitis in northern Beijing: A single-center study.World journal of clinical cases · 2022Article
- Article
- Incidence of Pediatric Perforated Appendicitis during the COVID-19 Pandemic; a Systematic Review and Meta-Analysis.Archives of academic emergency medicine · 2022Review
- Seasonal Variation and Severity of Acute Abdomen in Japan: A Nine-Year Retrospective Analysis.Journal of personalized medicine · 2021Article
- Seasonal variation of acute appendicitis: An Armed Forces experience of high altitude.Medical journal, Armed Forces India · 2021Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimTo investigate whether seasonal changes had an effect on the incidence of acute appendicitis (AA) or nonspecific abdominal pain (NSAP).
methodsWe carried out a national register study of all patients with a hospital discharge diagnosis of AA and acute NSAP in Finland. Data were analyzed for the whole country and correlated to seasonal and weather parameters (temperature, humidity). Moreover, additional sub-analyses were performed for five geographically different area of Finland.
resultsThe observation period spanned 21 years, with 186558 appendectomies, of which 137528 (74%) cases were reported as AA. The incidence of AA declined for 32% over the study period. The average incidence of the NSAP was 34/10000 per year. The mean annual temperature, but not relative humidity, showed clear geographical variations. The incidence of AA decreased significantly during the cold months of the year. No correlation was detected between temperature and incidence of NSAP. Humidity had a statistically significant impact on NSAP.
conclusionThe incidence of acute appendicitis is declining in Finland. We detected a clear seasonality in the incidence of AA and NSAP.
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