Correlation between the season, temperature and atmospheric pressure with incidence and pathogenesis of acute appendicitis

Karanikolić, Aleksandar; Karanikolić, Vesna; Djordjevic, L.; Pešić, Ivan

doi:10.2298/sarh1608402k

Cited by 5 publications

(3 citation statements)

References 18 publications

(27 reference statements)

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“…Some studies have speci cally focused on certain meteorological factors. For example, a study from Niš, Serbia, found that each 1 °C increase in the mean daily temperature was associated with a 1.3% increase in the overall risk of appendicitis occurrence (Karanikolić et al 2016). Another study analyzing data from California from 1999-2009 using time series regression models reported that the risk ratio increased by 1.11 (1.08-1.15) for each 20 °C increase in temperature, but no signi cant variations were observed during heatwaves (Sherbakov et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Effect of Temperature and Precipitation on Acute Appendicitis Incidence in Seoul: A Time Series Regression Analysis

Baek,

Park,

Park

2024

Preprint

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Purpose This study aimed to investigate the relationship between meteorological factors, specifically temperature and precipitation, and the incidence of appendicitis in Seoul, South Korea. Methods Using data from the National Health Insurance Service spanning 2010–2020, the study analyzed 165,077 appendicitis cases in Seoul. Time series regression modeling with distributed-lag non-linear models was employed. Results Regarding acute appendicitis and daily average temperature, the incidence rate ratio (IRR) showed an increasing trend from approximately −10 °C to 10 °C. At temperatures above 10 °C, the increase was more gradual. The IRR approached a value close to 1 at temperatures below −10 °C and above 30 °C. Both total and complicated appendicitis exhibited similar trends. Increased precipitation was negatively associated with the incidence of total acute appendicitis around the 50 mm/day range, but not with complicated appendicitis. Conclusions The findings suggest that environmental factors, especially temperature, may play a role in the occurrence of appendicitis. This research underscores the potential health implications of global climate change and the need for further studies to understand the broader impacts of environmental changes on various diseases.

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Section: Discussionmentioning

confidence: 99%

Effect of Temperature and Precipitation on Acute Appendicitis Incidence in Seoul: A Time Series Regression Analysis

Baek,

Park,

Park

2024

Preprint

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“… 26 Furthermore, previous studies of the seasonality of acute appendicitis did not specifically examine temperature, coarse temperature measurements (eg, monthly averages 28 , 29 ), or large and climate-diverse geographic regions. 29 , 30 , 31 , 32 , 33 Not all past studies found an increase in the incidence of acute appendicitis in the summer. 33 The objective of the present study was to investigate the incidence of acute appendicitis by considering local temperature patterns in geographic regions with different climate over several years.…”

Section: Introductionmentioning

confidence: 99%

Association of Appendicitis Incidence With Warmer Weather Independent of Season

et al. 2022

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ImportanceAcute appendicitis is a common cause of abdominal pain and the most common reason for emergency surgery in several countries. Increased cases during summer months have been reported.ObjectiveTo investigate the incidence of acute appendicitis by considering local temperature patterns in geographic regions with different climate over several years.Design, Setting, and ParticipantsThis cohort study used insurance claims data from the MarketScan Commercial Claims and Encounters Database and the Medicare Supplemental and Coordination of Benefits Database from January 1, 2001, to December 31, 2017. The cohort included individuals at risk for appendicitis who were enrolled in US insurance plans that contribute data to the MarketScan databases. Cases of appendicitis in the inpatient, outpatient, and emergency department settings were identified using International Classification of Diseases, Ninth Revision, Clinical Modification or International Statistical Classification of Diseases, Tenth Revision, Clinical Modification diagnosis codes. Local weather data were obtained for individuals living in a metropolitan statistical area (MSA) from the Integrated Surface Database. Associations were characterized using a fixed-effects generalized linear model based on a negative binomial distribution. The model was adjusted for age, sex, and day of week and included fixed effects for year and MSA. The generalized linear model was fit with a piecewise linear model by searching each 0.56 °C in temperature for change points. To further isolate the role of temperature, observed temperature was replaced with the expected temperature and the deviation of the observed temperature from the expected temperature for a given city on a given day of year. Data were analyzed from October 1, 2021, to July 31, 2022.Main Outcomes and MeasuresThe primary outcome was the daily number of appendicitis cases in a given city stratified by age and sex, with mean temperature in the MSA over the previous 7 days as the independent variable.ResultsA total of 450 723 744 person-years at risk and 689 917 patients with appendicitis (mean [SD] age, 35 [18] years; 347 473 male [50.4%] individuals) were included. Every 5.56 °C increase in temperature was associated with a 1.3% increase in the incidence of appendicitis (incidence rate ratio [IRR], 1.01; 95% CI, 1.01-1.02) when temperatures were 10.56 °C or lower and a 2.9% increase in incidence (IRR, 1.03; 95% CI, 1.03-1.03) for temperatures higher than 10.56 °C. In terms of temperature deviations, a higher-than-expected temperature increase greater than 5.56 °C was associated with a 3.3% (95% CI, 1.0%-5.7%) increase in the incidence of appendicitis compared with days with near-0 deviations.Conclusions and RelevanceResults of this cohort study observed seasonality in the incidence of appendicitis and found an association between increased incidence and warmer weather. These results could help elucidate the mechanism of appendicitis.

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“…It is usually seen in adolescents and young adults. AA incidence varies according to country, geographical region, race, sex, age, food culture and seasons (2).…”

Section: Introductionmentioning

confidence: 99%

Seasonal Pattern of Acute Appendicitis in Central Anatolia

Topal¹

2020

Erciyes Med J

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The most common cause of acute abdomen requiring surgical intervention globally is acute appendicitis (AA). In this study, we aimed to investigate how AA diagnosis is affected by seasonal changes in Central Anatolia. Materials and Methods: In this study, patients who underwent appendectomy with the diagnosis of (AA) between January 1, 2015 and January 1,2019 were evaluated retrospectively. We divided the patients into three groups based on their histopathological results: Group 1 Acute Appendicitis (AA), Group 2 Appendix vermiformis (AV) and Group 3 Perforated appendicitis (PA). Patients were evaluated concerning age, sex and season of operation. Results: Seven hundred ninety-five patients participated in our study. They were separated into the following groups: Group 1 (n=614), Group 2 (n=125), and Group 3 (n=56). Concerning the sex variable, no statistically significant differences were found between the groups (p=0.061). The mean age of the patients in the perforated appendicitis group was higher when compared to the other groups (p=0.001). When evaluated by season, it was seen that during winter, the patients in Group 1 were significantly higher than the patients in the other groups (p=0.009). In our study, acute appendicitis was most frequently diagnosed during winter (28.7%); appendix vermiformis was most frequently diagnosed during spring (32%) and perforated appendicitis was most frequently diagnosed during summer (41%). Conclusion: Although the diagnosis of acute appendicitis varies seasonally, age and seasonal changes may be effective in the frequency of acute appendicitis. In Central Anatolia, the incidence of acute appendicitis increased during winter, while the rate of perforated appendicitis increased in summer and the rate of negative appendectomy increased in spring.

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Correlation between the season, temperature and atmospheric pressure with incidence and pathogenesis of acute appendicitis

Abstract: According to the results of this research, we can conclude that patients’ sex, age and severity of the clinical form of AA are not in connection with the seasons, while there are certain connections between appendicitis occurrence and atmospheric temperature and pressure.

Cited by 5 publications

References 18 publications

Effect of Temperature and Precipitation on Acute Appendicitis Incidence in Seoul: A Time Series Regression Analysis

Effect of Temperature and Precipitation on Acute Appendicitis Incidence in Seoul: A Time Series Regression Analysis

Association of Appendicitis Incidence With Warmer Weather Independent of Season

Seasonal Pattern of Acute Appendicitis in Central Anatolia

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