MMH ED Poison Center: Recent Ten Articles Describing Overdose / Poisoning in Seasonality

2023年9月24日星期日

Recent Ten Articles Describing Overdose / Poisoning in Seasonality

Year	Country	Major Finding	References
2023 Aug	Taiwan	Intentional drug overdose, IDO occurred most frequently in spring (32.1%), particularly in male patients (28/49 male cases). First-time IDO occurred most frequently in spring (51/133 first-time cases) Repeat IDO occurred most frequently in autumn (20/63 repeat cases). Female conflict with father and/or boyfriend, and personality disorder in patients who overdosed, showed seasonality with a spring peak. Hospital admission rate was highest in winter (10/45 winter cases [22.2%]).	[1]
2023 Jul	China	Female patients accounted for a higher proportion (72.5%), and the incidence of suicide was higher in winter than other seasons. Among the 109 psychiatric patients, 60 patients (55.0%) had a history of major depressive disorder Thirty-seven patients (33.9%) experienced severe physical complications caused by drug overdose, with lung infections being the most common. 2 patients (1.8%) older than 80 failed to survive.	[2]
2023 Aug	UK	The rate peaked in Spring and was 1.07 (95% CI = 1.04-1.09) times higher in April than in October. The rate at New Year was 1.28 (95% CI = 1.17-1.41) times higher than on non-holidays; and this peak was only present for deaths that were not related to opioids. The rate was higher on Saturday than on other weekdays. We did not find evidence that the number of deaths varied by week-of-month.	[3]
2021 Dec	US	Show the spring months have the most consistent increases in overdose deaths and overdose calls for service across years we studied.	[4]
2020 Nov	US	Showed that the number of cases associated with poisoning suicide attempts peaked in the Spring and dipped in the Fall. Regression analysis showed higher numbers of suspected suicide attempts from intentional overdose in spring compared with winter by 1.07 times (p = 0.003), and on Sunday (p < 0.001), Monday (p < 0.001), and Thursday (p = 0.02) compared with Saturday by at least 1.09 times. Lower numbers of cases around Christmas (3 days before and after; 22.0 vs. 32.3 on control dates, p < 0.001).	[5]
2012	Polish	The number of intoxication-related admissions proved to be significantly higher on Monday whereas significantly lower on Saturday. As far as the yearly seasonality is concerned the number of admissions to the Clinic was significantly below the average in February and in the period from August to October while it was significantly above the average in January and March.	[6]
2012 Apr	Iran	A remarkable peak in suicides was observed in May and July, while winter had the highest suicide rate among seasons.	[7]
2005 Jul	Nepal	Seasonal variation in poisoning was observed with more cases in the summer months. Intensive care unit (ICU) service was required in 17% of patients; and almost 25% developed complications. Ninety four percent of admitted patients recovered completely; leaving a mortality rate of 5%.	[8]
1997 Dec	State of Bahrain	A seasonal variation was noted with 46% of the cases occurring in the summer months.	[9]
1992 Apr	Bulgaria	Over the week, the smallest number was on Saturdays. There was a slight seasonal variation, with the highest number in March and the lowest in August.	[10]