Seasonal and weekly patterns of hospital admissions for nonfatal and fatal myocardial infarction

Manfredini, Roberto; Manfredini, Fabio; Boari, Benedetta; Bergami, Elisabetta; Mari, E; Gamberini, Susanna; Salmi, Raffaella; Gallerani, Massimo

doi:10.1016/j.ajem.2008.08.009

Cited by 87 publications

(76 citation statements)

References 58 publications

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“…In addition, some studies have reported monthly or seasonal variations in PU-related disorders among various regions or countries. An Italian study shows that the number of PU cases is lower in summer than in winter, spring, or autumn [7] . Studies from China and Japan also report that cases of hemorrhage caused by PU increase during the winter and decrease during summer [8][9][10] .…”

Section: Introductionmentioning

confidence: 99%

Weekly pattern of emergency room admissions for peptic ulcers: A population-based study

Tsai

Lin²,

Pai

et al. 2015

WJG

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AIM: To investigate variations in the incidence of peptic ulcers (PUs) in Taiwan by day of the week within age subgroups. METHODS:Ambulatory care data were retrieved from the Longitudinal Health Insurance Database 2000. There were 7204 subjects ≥ 18 years-old with an emergency room admission claim for the treatment of PUs, resulting in a total of 9234 emergency room visits for PUs between 2009 and 2011. Data was divided into the seven days of the week and an additional variable for holidays. One-way analysis of variance was used to examine associations among the daily mean number of PU emergency room admissions and holidays/ weekends/weekdays. RESULTS:One-way analysis of variance showed that there was a significant difference in emergency room admissions for PUs by the day of the week (P < 0.001), with admission more likely to occur on Sundays or holidays than weekdays within the total and working populations. The weekday patterns of admission were similar for the patients aged 18-64 years and ≥ 65 years of age. Holidays, followed by Sundays, had higher PU admissions than the mean daily PU emergency room admissions. Furthermore, inclusion of only those treated for PUs with hemorrhage or perforation, Sundays and holidays had higher mean emergency room admissions than other days. Inclusion of patients who diagnosed with Helicobacter pylori infection, only holidays had higher mean emergency room admissions than other days. Inclusion of patients who had been prescribed non-steroidal anti-inflammatory drugs (NSAIDs) for over Observational Study ORIGINAL ARTICLE30 d, Sundays and holidays had higher mean PU ER admissions than other non-holiday weekdays.CONCLUSION: There is a higher incidence of emergency room admission for PUs on weekends than on weekdays for the total and working populations.

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Section: Introductionmentioning

confidence: 99%

Weekly pattern of emergency room admissions for peptic ulcers: A population-based study

Tsai

Lin²,

Pai

et al. 2015

WJG

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“…Possibly, an earlier start of diagnostic procedures and treatment could impact patients' prognosis. Again, IHM rate was higher when admission occurred in post-office hours [8] and during the holidays [19] . As for WE versus WD, although a high mortality in subjects admitted during the WE has been reported by several authors, with an estimated increase of risk between 10% and 32% [14,15,[20][21][22] , in our study there was a trend in which more patients admitted during the WE died than those admitted on WD, but this was not confirmed by multivariate analysis.…”

Section: Discussionmentioning

confidence: 98%

“…Several life-threatening acute diseases seem to exhibit precise preferred times of onset, characterized by highest risk, during the hours of the day (morning), month or season of the year (winter), and day of the week (Monday) [1][2][3][4][5][6][7][8][9][10][11][12][13] . In particular, admission to the hospital during nighttime and weekend (WE) was associated with increased risk of in-hospital mortality (IHM) and length-of-hospital stay (LOS) in acute care hospitals in Canada and England [14,15] , and an increased risk has been recently reported to be associated with duration of visits in the ED [16] .…”

Section: Introductionmentioning

confidence: 99%

In-hospital mortality and length-of-stay in a cohort of ED patients admitted to internistic units

Giorgi¹,

Fabbian²,

Ferro³

et al. 2013

JHA

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Background: Several life-threatening acute diseases exhibit precise preferred times of onset, during the day (morning), the month or season of the year (winter), and the day of the week (Monday). Moreover, admission to the hospital during nighttime and weekend (WE) is associated with increased risk of in-hospital mortality (IHM) and length-of-hospital stay (LOS). Since most of these data have been obtained in North American settings, the aim of this study was to verify also in an Italian setting whether some factors related to ED evaluation, including time of arrival, and disease's severity evaluated by a colour code, could be associated with IHM and LOS in ED patients admitted to internal medicine units. Methods:This study was conducted between January 1, 2010 and July 31, 2012, at the St Anna Hospital of Ferrara. We analyzed age, sex, time of arrival to the ED, ED boarding time, and triage colour code of all patients admitted to the Department of Medicine. Friday to midnight Sunday was considered as WE, and the nine main national festive days were always considered as Sunday-WE. Thus, the time period was classified into holidays (WE + festive days) and weekdays (WD), and daytime (8:00 am -8:00 pm) and nighttime (8:00 pm -8:00 am). IHM and LOS were assumed as primary and secondary objectives, respectively. Patients were classified into deceased and survivors, and LOS was classified depending on length lower or higher than the median (seven days). T-test, chi-squared test, U Mann-Whitney test, and logistic regression analysis were performed.Results: During the 18-month period, 13,237 consecutive patients visiting the ED (43.4% males, mean age 74.8 ± 13.6 years, 56.6% females, mean age 78.0 ± 13.3 years), were considered. IHM was related to: time of admission (daytime vs. nighttime, p = .015; WE vs. WD, p = .026, holidays vs. no holidays, p = .021), colour code (p < .001), and age (p < .001). Multivariate analysis showed an independent association with IHM for colour code (p < .001), and age (p < .001). LOS >7 days was related to: time of admission (daytime vs. nighttime, p < .001; WE or WD, p = .001; holidays vs. no holidays, p = .002). Furthermore, LOS >7 days depended on both colour code of admission (p < .001), and age (p < .001). Multivariate analysis showed a significant correlation with LOS >7 days for yellow colour code (p < .001), and age (p < .001). Conclusions:Although several factors, such as admission colour code and age, influence some parameters of clinical outcome, i.e., IHM and LOS, a striking weekend effect is not evident in a cohort of consecutive patients admitted to an Italian Medical Department, characterized by intermediate-high level of urgency.

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“…Manfredini et al (28) reported that TIA was most frequent in autumn and winter and less common in spring and summer, with the highest number of cases in October and the lowest in February. In another study Manfredini et al (30) reported acute MI was most frequent in winter and least in summer. The highest number of cases was recorded in January and the lowest in July.…”

Section: Seasonal Variationmentioning

confidence: 99%

“…Occurrence on Mondays was increased by 19% for retired patients and by 24% for working patients. In another study, Manfredini et al (30) showed that acute MI was mostly occurred on Monday and lastly on Sunday. For total, nonfatal and fatal cases, comparing observed vs. expected events there was a significantly higher frequency of cases on weekdays and reduced on weekends.…”

Section: Daily Variationmentioning

confidence: 99%

Diurnal variation in acute thrombotic cardiovascular events

Işık

Ayhan²,

Uyarel³

2012

Anadolu Kardiyol Derg

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Circadian clocks affect cardiovascular system and thought to be responsible for the increased vascular events during certain periods. Determination of the diurnal variation of acute vascular thrombotic events might help us for protection of patients during vulnerable periods. In this review, we investigate diurnal variation in acute thrombotic vascular events in the light of recent information. (Anadolu Kardiyol Derg 2013; 13: 67-71)

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Seasonal and weekly patterns of hospital admissions for nonfatal and fatal myocardial infarction

Cited by 87 publications

References 58 publications

Weekly pattern of emergency room admissions for peptic ulcers: A population-based study

Weekly pattern of emergency room admissions for peptic ulcers: A population-based study

In-hospital mortality and length-of-stay in a cohort of ED patients admitted to internistic units

Diurnal variation in acute thrombotic cardiovascular events

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