The incidence of COVID-19 among dentists practicing in the community in Canada: A prospective cohort study over a 6-month period.

BACKGROUND: Oral health care settings carry a potentially high risk of causing cross-infection between dentists and patients and among dental staff members due to close contact and use of aerosol-generating procedures. The authors aimed to estimate COVID-19 incidence rates among Canadian dentists over a 6-month period. METHODS: The authors conducted a prospective cohort study of 644 licensed dentists across Canada from July 29, 2020, through February 12, 2021. An online questionnaire, adapted from the World Health Organization's Unity Studies protocols for assessment of COVID-19 risk among health care workers, was used to collect data on self-reported severe acute respiratory syndrome coronavirus 2 infections every 4 weeks. A bayesian Poisson model was used to estimate the incidence rate and corresponding 95% credible intervals (CIs). RESULTS: Median age of participants was 47 years; most participants were women (56.4%) and general practitioners (90.8%). Median follow-up time was 188 days. Six participants reported COVID-19 infections during the study period, giving an incidence rate of 5.10 per 100,000 person-days (95% CI, 1.86 to 9.91 per 100,000 person-days). The incidence proportion was estimated to be 1,084 per 100,000 dentists (95% CI, 438 to 2,011 per 100,000 dentists) and 1,864 per 100,000 people (95% CI, 1,859 to 1,868 per 100,000 people) in the Canadian population during the same period. CONCLUSIONS: The low infection rate observed among Canadian dentists from July 29, 2020, through February 12, 2021, should be reassuring to the dental and general community. PRACTICAL IMPLICATIONS: Although the infection rates were low among Canadian dentists, it is important to continue to collect disease surveillance data.

Cultural, socioeconomic, and health indicators among Inuit preschoolers: Nunavut Inuit Child Health Survey, 2007-2008.

INTRODUCTION: Indicators of socioeconomic status, health behaviours and health histories are important for evaluating population health and indicators associated with 'indigeneity' features, prominently as determinants of health for Indigenous peoples. Health surveillance of young children, who represent society's most vulnerable, can provide meaningful data regarding achieving an optimal healthy start in life. METHODS: A cross-sectional health survey of Inuit children, aged 3-5 years, was conducted between 2007 and 2008. The latitude of the communities ranged from 56 degrees 32'N to 72 degrees 40'N. A bilingual research team conducted face-to-face interviews which included the use of questionnaires covering factors associated with indigeneity, the physical and socio-economic environment, health behaviours and health histories. Weighted prevalence estimates were calculated. RESULTS: The participation rate was 72.3%; 388 randomly selected children participated. Indicators of traditional food utilization and sharing were highly prevalent and Inuktitut was spoken by 65.2% of preschoolers in the Inuktitut speaking regions. A large percent of the preschoolers lived in a crowded dwelling (53.9%) and in public housing (69.7%), and in a home in need of major repairs (37%). There was an average of 2 smokers per household but the majority of homes restricted smoking to outside the home (83.1%). The majority of mothers smoked during pregnancy (82.5%). For children who were not adopted, there was a high prevalence of breastfeeding initiation (80.6%). A high prevalence of children were ever hospitalized, excluding deliveries (41.6%), and within the past year 40.7% of the children had to be taken to the health centre or hospital for a respiratory problem. CONCLUSION: Indicators of indigeneity suggest the Inuktitut language is thriving and that children are learning Inuit ways through extended family contact and country food utilization and sharing. The high prevalence of smoking restrictions in the home is evidence of the success of public health messaging but further work is needed to improve health behaviours. The high prevalence of household crowding, homes in need of major repairs, public housing and income support all indicate chronic economic and social disadvantages that have negative implications for children's health. Interventions are needed to improve housing and reduce poverty for families with young children.