Tosha Ashish Kalhan

and 13 more

Background: Infants with atopic dermatitis (AD) are reported to be at higher risk of early childhood caries (ECC) at 3-years, but the clinical validity of the reported link remains unknown. We investigated if clinical severity of AD in young children is associated with increased ECC risk at 3-years. Methods: In Growing Up in Singapore Towards healthy Outcomes (GUSTO) mother-offspring cohort, AD was diagnosed by trained physicians using Hanifin and Rajka criteria at 18-month and 3-year clinic visits (n=837). Of the children diagnosed with AD, disease severity was assessed using SCORAD (SCORing Atopic Dermatitis) index and categorized into moderate-to-severe AD (SCORAD≥25), and mild AD (SCORAD<25), with children without AD (non-AD) as a reference group. Oral examinations for ECC detection was performed by calibrated dentists in 656 children at age 3-years. Negative binomial regression was used to calculate the adjusted incidence risk ratio (aIRR; adjusted for socio-demographic factors and prenatal tobacco smoke exposure). Results: Atopic dermatitis was diagnosed in 7.3% (61/837) children; amongst which 23% had moderate-to-severe AD and 77% had mild AD. ECC was observed in 85.7%, 36.8% and 42.8% of the children in moderate-to-severe, mild and non-AD groups, respectively. Children with moderate-to-severe AD were at higher risk of ECC (aIRR 2.30 [95% confidence interval (CI) 1.04-5.06]; p=0.03) at 3 years compared to non-AD, while no association was seen between mild AD and ECC. Conclusions: Children with moderate-to-severe atopic dermatitis were at higher risk of ECC compared to those without AD and may benefit from early dental referral.

Nikolaos Papadopoulos

and 41 more

Background: The interplay between COVID-19 pandemic and asthma in children is still unclear. We evaluated the impact of COVID-19 on childhood asthma outcomes. Methods: The PeARL multinational cohort included 1,054 children with asthma and 505 non-asthmatic children aged between 4-18 years from 25 pediatric departments, from 15 countries globally. We compared the frequency of acute respiratory and febrile presentations during the first wave of the COVID-19 pandemic between groups and with data available from the previous year. In children with asthma, we also compared current and historical disease control. Results: During the pandemic, children with asthma experienced fewer upper respiratory tract infections, episodes of pyrexia, emergency visits, hospital admissions, asthma attacks and hospitalizations due to asthma, in comparison to the preceding year. Sixty-six percent of asthmatic children had improved asthma control while in 33% the improvement exceeded the minimal clinically important difference. Pre-bronchodilatation FEV1 and peak expiratory flow rate were improved during the pandemic. When compared to non-asthmatic controls, children with asthma were not at increased risk of LRTIs, episodes of pyrexia, emergency visits or hospitalizations during the pandemic. However, an increased risk of URTIs emerged. Conclusion: Childhood asthma outcomes, including control, were improved during the first wave of the COVID-19 pandemic, probably because of reduced exposure to asthma triggers and increased treatment adherence. The decreased frequency of acute episodes does not support the notion that childhood asthma may be a risk factor for COVID-19. Furthermore, the potential for improving childhood asthma outcomes through environmental control becomes apparent.