Is the use of emergency departments socially patterned?

OBJECTIVES: To analyse the association between patients' socioeconomic position (SEP) and the use of emergency departments (EDs). METHODS: This population-based study included all visits to ED in 2012 by inhabitants of the French Midi-Pyrénées region, recorded by the Regional Emergency Departments Observatory. We compared ED visit rates and the proportion of non-severe visits according to the patients' SEP as assessed by the European Deprivation Index. RESULTS: We analysed 496,388 visits. The annual ED visit rate increased with deprivation level: 165.9 [95% CI (164.8-166.9)] visits per 1000 inhabitants among the most advantaged group, compared to 321.9 [95% CI (320.3-323.5)] per 1000 among the most disadvantaged. However, the proportion of non-severe visits was about 14% of the visits, and this proportion did not differ according to SEP. CONCLUSIONS: Although the study shows a difference of ED visit rates, the probability of a visit being non-severe is not meaningfully different according to SEP. This supports the assumption that ED visit rate variations according to SEP are mainly explained by SEP-related differences in health states rather than SEP-related differences in health behaviours.

Sex and age differences in ED patients with mental and behavioral disorders due to psychoactive substance use.

OBJECTIVES: The objectives of this study are to describe an emergency department (ED) adult population with the chief complaint of mental and behavioral disorders due to psychoactive substance use and to investigate sex- and age-related differences. METHODS: We analyzed data (2009-2011) from the Regional Observatory of Emergency Medicine ORU-MiP (700000 patients per year) for all patients with a primary diagnosis of mental and behavioral disorders due to psychoactive substance use. Day data were weighted by the number of days in the year and expressed for 100000 inhabitants of the area. Pearson χ(2) test and Fisher tests were used. The Brown-Mood test was used to compare medians. RESULTS: Of the 1411597 ED visits analyzed, 20838 consults (1.3%) were for primary diagnosis of mental and behavioral disorders due to psychoactive substance use. The median age (interquartile range) was 41 (28-51) years; 69.5% were men. More women consulted the ED for sedative or hypnotic use (4.9% vs 1.5%, P < 10(-4)) than men, and more men consulted for alcohol consumption (93.5% vs 90%, P < 10(-4)) and cannabinoids (1.4% vs 1.0%, P < 10(-3)) than women. Young consumer visits dramatically increased during weekends (average of 88 visits a day per 100000 inhabitants vs 34 on Mondays to Thursdays). Another difference was found between young adults and middle-aged adults, with a peak in visits at 2 am and 9 pm respectively. CONCLUSIONS: Mental and behavioral disorders due to psychoactive substance use account for 1.3% of ED visits. Older people should be screened for chronic alcohol consumption. Our findings underscore the opportunity provided by the ED for screening and brief intervention in drug- and alcohol-related problems.