IntroductionThe COVID-19 pandemic had a considerable psychosocial impact on healthcare workers (HCWs) who were constantly requested during this era with an increased risk of infection. This implies behavioural changes, especially in smoking behaviour.ObjectivesTo study smoking behaviour in HCWs with COVID-19.MethodsA cross-sectional descriptive study conducted in the department of occupational pathology of Charles Nicolle Hospital in Tunis involving the smoking HCWs affected by COVID-19 during the period from September 1, 2020, to February 28, 2021. The data collection was carried out by a telephone call using a standardized questionnaire.ResultsDuring the study period, 61 smoking HCWs were identified. Thirty-two patients agreed to answer the questionnaire, with a response rate of 52%. The mean age was 41±10 years. The sex ratio (M/F) was 1.46. Half of the participants had comorbidities. The most represented occupational categories were blue-collar workers (n=11) followed by nurses (n=10) and physicians (n=7). The median professional seniority was 13 [3.5; 20] years. The mean age of smoking initiation was 20±5 years. The most common mode of smoking was cigarettes (93%) with an average consumption of 19 cigarettes per day. Water pipe smoking was noted in 3 patients. All patients started smoking before the COVID-19 infection. Strong tobacco dependence was noted in 25% of patients. Twenty-one per cent of the population had moderate dependence. Half of the participants maintained the same level of smoking as before the COVID-19 infection. An increase in smoking was noted in 34% of patients. A decrease in the level of smoking was reported by 15% of respondents. Four participants stopped smoking after COVID-19 infection. The reasons for smoking cessation were COVID-19 damage (n=3) and confinement with family (n=1).ConclusionsThe change in smoking behaviour during the COVID-19 pandemic is notable, particularly in HCWs who are exposed to a high physical and mental load. The presumed association of smoking with severe forms of COVID-19 infection makes tobacco control in HCWs an obligation in order to preserve the continuity of care.Disclosure of InterestNone Declared

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compared with 40,4% of controls. A significant association existed between smoking and lung cancer OR= 4,99 IC95%= [2,).Workers in the categories construction sector (p=0.01; OR IC95% = 1,95 [1,40] ) and hotels sectors (p=10-3; OR IC95% = 5,90 [1,90] ) showed signicantly increased risks of lung cancer.When determined by job task exposure matrix, crystalline silica (p=0,03 ; OR IC95%= 3,06 [1,06-8,83]), diesel emissions (p=0,01 ; OR IC95%=0,99[0,99-1]), chromium (p=0,01 ; OR IC95%=0,99[0,99-1]) and nickel (p=0,0 ; OR IC95%=0,99[0,98-1]) were signicantly associated with lung cancer. Conclusion Certain occupations and industries increase lung cancer risks among workers. These occupational exposures should be identified, in order to put in place effective prevention strategies.

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BackgroundCOVID-19 infection has revealed a considerable number of extra-pulmonary manifestations, especially rheumatological. The detection of these manifestations, which herald the infection, is of great value in the early diagnosis of the disease, especially in health care workers (HCWs) who are at considerable risk of infection. Although myalgia is a common clinical feature of COVID-19, other musculoskeletal disorders (MSDs) have been rarely described.ObjectivesTo describe MSDs during SARS-COV2 infection in HCWs.MethodsProspective descriptive study conducted at the department of occupational pathology and fitness for work of Charles Nicolle Hospital in Tunis, having included the HCWs affected by COVID-19 during the period from 01 September 2020 to 28 February 2021. Data collection was carried out by regular telephone follow-up during the containment period using a pre-established form.ResultsDuring the study period, 656 HCWs were infected with SARS COV 2, of whom 134 (20.4%) had at least one musculoskeletal event. The mean age was 42±9 years with a sex ratio (M/F) of 0.2. The most represented occupational category was nurses (33.6%) followed by health technicians (23.1%). The median professional length of service was 12 [7; 20] years. The presence of comorbidity was noted in 58.2% of HCWs. A pre-existing osteoarticular disease was found in 8.2% of cases. Obesity was noted in 25.4% of the population. Active smoking was reported by 14.3% of respondents. A known vitamin D deficiency was noted in 16.5% of patients. Spinal pain was the most reported MSD, present in 87.3% of cases. Low back pain was the most frequent spinal pain (56.7%) followed by back pain (37.4%) and neck pain (5.9%). MSDs of the lower limbs were found in 12.7% of patients. They were represented by gonalgia in 11.9% of cases, ankle pain in 5.2% of cases and hip pain in 4.3% of cases. MSDs of the upper limbs were described by 7.5% of the patients, 92.5% of whom presented with shoulder pain. The median duration of MSDs during COVID-19 was 5 [3; 8] days. These manifestations were persistent on return to work in 21.1% of cases.ConclusionKnowledge of the frequency and consequences of musculoskeletal manifestations related to COVID-19 infection is of great importance, particularly in HCWs, in order to optimise management and ensure a rapid return to work.REFERENCES:NIL.Acknowledgements:NIL.Disclosure of InterestsNone Declared.