Risk factors for post-COVID-19 condition (Long Covid) in children: a prospective cohort study

被引:80
作者
Morello, Rosa [1 ]
Mariani, Francesco [1 ]
Mastrantoni, Luca [2 ]
De Rose, Cristina [1 ]
Zampino, Giuseppe [1 ]
Munblit, Daniel [3 ,6 ]
Sigfrid, Louise [4 ]
Valentini, Piero [1 ]
Buonsenso, Danilo [1 ,5 ,7 ]
机构
[1] Fdn Policlin Univ A Gemelli IRCCS, Dept Woman & Child Hlth & Publ Hlth, Rome, Italy
[2] Univ Cattolica Sacro Cuore, Med Oncol, Rome, Italy
[3] IM Sechenov First Moscow State Med Univ, Sechenov Univ, Inst Childs Hlth, Dept Paediat & Paediat Infect Dis, Moscow, Russia
[4] Univ Oxford, Pandem Sci Inst, ISAR Global Support Ctr, GloPID R Res & Policy Team, Oxford, England
[5] Univ Cattolica Sacro Cuore, Ctr Salute Globale, Rome, Italy
[6] Kings Coll London, Florence Nightingale Fac Nursing Midwifery & Palli, Care Long Term Condit Div, London, England
[7] Largo A Gemelli 8, I-00168 Rome, Italy
关键词
Sars-Cov-2; infection; Children; Long covid; Post-covid condition; Risk factors; Sars-CoV-2; variants; COVID-19; vaccination;
D O I
10.1016/j.eclinm.2023.101961
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background Adults and children can develop post-Covid-19 condition (PCC) (also referred to as Long Covid). However, existing evidence is scarce, partly due to a lack of a standardised case definition, short follow up duration, and heterogenous study designs, resulting in wide variation of reported outcomes. The primary aim of this study was to characterise risk factors for PCC and longitudinal rates of recovery in a cohort of children and young people using a standardised protocol.Methods We performed a prospective "disease-based" cohort study between 01/02/2020 to 31/10/2022 including children aged 0-18 years old, with a previous diagnosis of Covid-19. Children with microbiologically confirmed SARS-CoV-2 infection, were invited for an in-clinic follow-up assessment at a paediatric post-covid clinic in Rome, Italy, at serial intervals (3-, 6-, 12-and 18-months post-onset). PCC was defined as persistence of otherwise unexplained symptoms for at least three months after initial infection. The statistical association between categorical variables was obtained by Chi-squared tests or Fisher's exact tests. Multivariable logistic regressions are presented using odds ratios (OR) and 95% confidence interval (CI). Survival analysis was conducted using the Kaplan-Meier method.Findings 1243 children were included, median age: 7.5 (4-10.3) years old; 575 (46.3%) were females. Of these, 23% (294/1243) were diagnosed with PCC at three months post-onset. Among the study population, 143 patients remained symptomatic at six months, 38 at 12 months, and 15 at 18 months follow up evaluation. The following risk factors were associated with PCC: >10 years of age (OR 1.23; 95% CI 1.18-1.28), comorbidities (OR 1.68; 95% CI 1.14-2.50), and hospitalisation during the acute phase (OR 4.80; 95%CI 1.91-12.1). Using multivariable logistic regression, compared to the Omicron variant, all other variants were significantly associated with PCC at 3 and 6 months. At least one dose of vaccine was associated with a reduced, but not statistically significant risk of developing PCC.Interpretation In our study, acute-phase hospitalisation, pre-existing comorbidity, being infected with pre-Omicron variants and older age were associated with a higher risk of developing PCC. Most children recovered over time, but one-in-twenty of those with PCC at three months reported persistent symptoms 18 months post-Sars-CoV-2 infection. Omicron infection was associated with shorter recovery times. We did not find a strong protective effect of vaccination on PCC development. Although our cohort cannot be translated to all Italian children with PCC as more nationwide studies are needed, our findings highlight the need of new strategies to prevent and treat pediatric PCC are needed.Funding This study has been funded by Pfizer non-competitive grant, granted to DB (# 65925795).Copyright & COPY; 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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