IJCS | Volume 31, Nº2, March / April 2018

109 Table 1 – Characteristics of the studied population Variables Values Age, mean ± SD 59.32 ± 11.57 Male, n (%) 75 (69.4) Ethnicity n (%) White 96 (88.9) Black 3 (2.8) Mixed-race 9 (8.3) Marital status, n (%) Single 7 (6.5) Married/in a stable relationship 75 (69.4) Divorced 14 (13.0) Widowed 12 (11.1) STEMI, n (%) 51 (47.2) Origin, n (%) São José 29 (26.9) Other municipalities 79 (73.1) Referred, n (%) 57 (52.8) Risk factors, n (%) Systemic arterial hypertension 62 (57.4) Diabetes Mellitus 24 (22.2) Dyslipidemia 35 (32.4) Family history, n (%) 44 (40.7) Smoker 34 (31.5) Ex-smoker 31 (28.7) Sedentary lifestyle 59 (54.6) SD: standard deviation; STEMI: ST-elevation myocardial infarction as numeric values with the respective percentages, and analyzed by the chi-square test or Fisher’s test. Values of p < 0.05 were considered significant, and confidence intervals were set at 95%. The study was carried out in accordance with Resolution 466/2012 of the National Health Council and was approved by the institution's ethics committee. All participants signed the Free and Informed Consent form. Results We evaluated 107 patients who were admitted to the ICSC from July to December 2016, in addition to a single patient admitted to another public hospital in the city of Florianópolis, Santa Catarina, Brazil. The sample consisted of 75 men (69.4%), and the mean age was 59.32 ± 11.57 years. Most of them were married/in a stable relationship (69.4%) and self-reported their ethnicity as White (88.9%). Regarding the origin, 29 patients (26.9%) came from São José (SC), where the institution is located, while 79 (73.1%) came from other municipalities. These and other characteristics of the studied population are shown in table 1. The median duration of schooling was 5 years, with an Interquartile Range (IQR) of 3 to 8 years. The median score in the MMSE was 25 (IQR: 22 to 27). Themedian∆-Twas4hoursand51minutes (IQR: 2hours and11minutes - 13hours and45minutes),withaminimum ∆-T of 26 minutes, and a maximum of 90 hours and 39 minutes. These values were significantly lower when only ST-elevationmyocardial infarctions were considered, with a median of 3 hours and 49 minutes (IQR: 1 hour and 56 minutes - 11 hours and 46 minutes), when compared to 9 hours and 40 minutes (IQR: 2 hours and 40 minutes - 18 hours and 01minute) for non-ST elevationMI (NSTEMI) (p = 0.04). Additionally, patients from São José took less time to arrive at the hospital, with a median of 2 hours and 17 minutes (IQR: 1 hour and 21 minutes - 12 hours and 19 minutes), when compared with the median of 6 hours and 17minutes (IQR: 2 hours and 42minutes - 14 hours and 03 minutes) from other municipalities (p = 0.02); patients who were transferred from other health services had a greater median time (9 hours and 04 minutes; IQR: 3 hours and 19 minutes - 16 hours and 33 minutes) compared to those who spontaneously came to the hospital (2 hours and 57 minutes ; IQR: 1 hour and 45 minutes - 6 hours and 07 minutes), with p = 0.007. There was no correlation between years of schooling and ∆-T (r = -0.032, p = 0.645), or between MMSE performance and ∆-T (r = -0.073; p = 0.283), even when infarctions with and without ST-elevation were evaluated separately (Table 2). When the risk factors were analyzed, there was no association between the presence of systemic arterial hypertension, diabetes mellitus, dyslipidemia, family history, smoking or sedentary lifestyle with time of arrival at the hospital (Table 3). Comparisons between ∆-T and marital status Takagui et al. Infarction and delay in hospital care Int J Cardiovasc Sci. 2018;31(2)107-113 Original Article