Background: Knowledge, attitude, and practice of people, especially high-risk ones, are essential for managing COVID-19. Previous studies have shown that inappropriate knowledge and attitude may influence people's decisions. Objectives: This study aimed to evaluate the knowledge and attitudes of patients towards COVID-19 who called emergency medical service (EMS) while suffering from a chronic underlying disease, whether they were transferred to the hospital during the pandemic or not. Methods: This cross-sectional study was conducted from 21 May 2020 to 20 June 2020 in Tehran, Iran. Using the registered data in the databank of the Tehran EMS center, eligible participants were selected and divided into transferred and non-transferred groups based on the recorded data. A valid and reliable questionnaire comprising four parts (demographic information, patients' knowledge about COVID-19, patients' attitude towards COVID-19, and patients' fear) was used. A researcher-made checklist was also used for recording the consequences and reasons for refusal. Select eligible individuals who agreed to enter the survey were interviewed by telephone. Results: Totally, 201 transferred patients and 158 non-transferred patients were enrolled. The mean age of the transferred group was lower than that of the non-transferred one (57.1 ± 16.1 vs. 62.0 ± 17.4 years; P = 0.006). The mean knowledge score was not statistically different between transferred and non-transferred patients (28.8 ± 5.7 vs. 28.2 ± 5.4; P = 0.320). The mean attitude score was lower in the transferred group than in the non-transferred group (0.75 ± 3.7 vs. 2.2 ± 3.5; P = 0.001). The mean fear score was higher in the non-transferred group than in the transferred group, but the difference was not statistically significant (16.0 ± 5.1 vs. 15.0 ± 5.6; P = 0.101). Conclusions: Most participants in both transferred and non-transferred groups did not have sufficient knowledge of the disease, but the average attitude had a positive score.
Background: COVID-19 pandemic, which started in late 2019, has brought various ups and downs worldwide. Planned policies were highly useful in the first wave of the COVID-19 pandemic in Iran. However, due to several reasons, the country faced the second wave. Objectives: The current study aimed to compare patients’ features in the first two waves of the COVID-19 pandemic in the city of Tehran, Iran. Methods: Following a retrospective, cross-sectional design, the current study was carried out on 5000 suspected/confirmed COVID-19 cases who were randomly selected from all cases transferred by ambulance to hospitals located in the city of Tehran. The first wave of the COVID-19 epidemic was from February 20 to May 04, 2020, and the second wave was from May 05 to August 05, 2020. Data for both waves, were collected using a researcher-made checklist. Results: In this study, data of 5000 suspected/confirmed COVID-19 cases were analyzed (2773 cases belonged to the first wave and 2227 to the second one). The mean age of patients (P < 0.001), the frequency of cigarette smoking (P < 0.001), opium abuse (P = 0.004), and the presence of underlying diseases (P < 0.05) were more frequent in the second wave than in the first one. The notable finding in this study was the significant increase of non-respiratory symptoms of patients in the second wave. The number of cases who reported close contact with COVID-19 patients was higher in the second wave. Also, hypoxia, intubation during the hospital stay, length of hospitalization, and mortality rates were significantly lower in the second wave. During the second wave, the odd ratio of positive findings in lung CT-scan was 3.4 (95% confidence interval: 2.51 to 4.55) compared to the first wave (P < 0.001). Conclusions: This study demonstrated considerable differences between the first and second waves of the COVID-19 pandemic concerning the patients’ features.
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