CLoCk Publications until June 2024

Publications until June 2024. See GoogleScholar for additional publications. 

2024

Behnood, S., Newlands, F., O’Mahoney, L., Haghighat Ghahfarokhi, M., Muhid, M. Z., Dudley, J., ... & Takeda, A. (2023). Persistent symptoms are associated with long term effects of COVID-19 among children and young people: Results from a systematic review and meta-analysis of controlled studies. Plos one, 18(12), e0293600. https://doi.org/10.1371/journal.pone.0293600

Foret-Bruno, P., Shafran, R., Stephenson, T., Nugawela, M. D., Chan, D., Ladhani, S., ... & Pereira, S. M. P. (2024). Prevalence and co-occurrence of cognitive impairment in children and young people up to 12-months post infection with SARS-CoV-2 (Omicron variant). Brain, Behavior, and Immunity. https://doi.org/10.1016/j.bbi.2024.05.001

Newlands, F., Lewis, C., d’Oelsnitz, A., Pinto Pereira, S. M., Stephenson, T., Chalder, T., ... & Shafran, R. (2024). “People don’t have the answers”: A qualitative exploration of the experiences of young people with Long COVID. Clinical Child Psychology and Psychiatry, 13591045241252463. https://doi.org/10.1177/13591045241252463

Panagi, L., White, S. R., Pinto Pereira, S. M., Nugawela, M. D., Heyman, I., Sharma, K., ... & Shafran, R. (2024). Mental health in the COVID-19 pandemic: A longitudinal analysis of the CLoCk cohort study. PLoS Medicine, 21(1), e1004315. https://doi.org/10.1371/journal.pmed.1004315

Pinto Pereira, S. M., Nugawela, M. D., Stephenson, T., Foret-Bruno, P., Dalrymple, E., Xu, L., ... & Shafran, R. (2024). Post-Covid-19 condition (Long Covid) in children and young people 12 months after infection or reinfection with the Omicron variant: a prospective observational study. Scientific Reports, 14(1), 9957. https://doi.org/10.1038/s41598-024-60372-4

Stephenson, T., & Shafran, R. (2024). Long COVID in non-hospitalised children and young people: A national matched cohort study.(The CLoCk study). Global Pediatrics, 7, 100133. https://doi.org/10.1016/j.gpeds.2024.100133

2023

McOwat, K., Pinto Pereira, S. M., Nugawela, M. D., Ladhani, S. N., Newlands, F., Stephenson, T., ... & Shafran, R. (2023). The CLoCk study: A retrospective exploration of loneliness in children and young people during the COVID-19 pandemic, in England. PloS one, 18(11), e0294165. https://doi.org/10.1371/journal.pone.0294165 

Newlands, F., Goddings, A. L., Juste, M., Boyd, H., Nugawela, M. D., Pinto Pereira, S. M., ... & Shafran, R. (2023). Children and young people with long COVID—comparing those seen in post-COVID services with a non-hospitalised national cohort: a descriptive study. Children, 10(11), 1750. https://doi.org/10.3390/children10111750 

Newlands, F., Rojas, N. K., Nugawela, M., Pinto Pereira, S. M., Buszewicz, M., Chalder, T., ... & Shafran, R. (2023). A cross-sectional study of the health of emerging young adults in England following a COVID-19 infection. Journal of Adolescent Health. https://doi.org/10.1016/j.jadohealth.2023.01.026 

Nugawela, M. D., Pinto Pereira, S. M., Rojas, N. K., McOwat, K., Simmons, R., Dalrymple, E., ... & CLoCk Consortium. (2023). Data Resource Profile: the Children and Young People with Long COVID (CLoCk) Study. International Journal of Epidemiology. https://doi.org/10.1093/ije/dyad158 

Pinto Pereira, S. M., Nugawela, M. D., McOwat, K., Dalrymple, E., Xu, L., Ladhani, S. N., ... & Stephenson, T. (2023). Symptom profiles of children and young people 12 months after SARS-CoV-2 testing: a national matched cohort study (The CLoCk Study). Children, 10(7), 1227. https://doi.org/10.3390/children10071227 

Pinto Pereira, S. M., Nugawela, M. D., Rojas, N. K., Shafran, R., McOwat, K., Simmons, R., ... & Stephenson, T. (2023). Post-COVID-19 condition at 6 months and COVID-19 vaccination in non-hospitalised children and young people. Archives of Disease in Childhood. http://dx.doi.org/10.1136/archdischild-2022-324656 

Pinto Pereira, S.M., Nugawela, M.D., McOwat, K., Dalrymple, E., Xu, L., Ladhani, S.N., Simmons, R., Chalder, T., Swann, O., Ford, T., Heyman, I., Segal, T., Semple, M.G., Rojas, N., CLoCk Consortium, Shafran, R. and Stephenson, T.  Symptom Profiles of Children and Young People 12 Months after SARS-CoV-2 Testing: A National Matched Cohort Study (The CLoCk Study). Children 2023, 10, 1227. https://doi.org/10.3390/children10071227 

Pinto Pereira, S. M., Mensah, A., Nugawela, M. D., Stephenson, T., Ladhani, S. N., Dalrymple, E., ... Shafran, R. Long Covid in Children and Youth after Infection or Reinfection with the Omicron Variant: A Prospective Observational Study. Journal of Pediatrics. https://doi.org/10.1016/j.jpeds.2023.113463 

Rojas, N, K., De Stavola, B. L., Norris, T., Cortina-Borja, M., Nugawela, M. D., Hargreaves, D., ...& Pinto Pereira, S. M. (2023). Developing survey weights to ensure representativeness in a national, matched cohort study: results from the Children and young people with Long Covid (CLoCk) study. Preprint. https://doi.org/10.21203/rs.3.rs-2912362/v1 

Schneider, V., Norris, T., Nugawela, M., Dalrymple, E., Hargreaves, D., Käll, A., ... & Pinto Pereira, S. M. (2023). Loneliness trajectories, associated factors and subsequent health in children and young people during the COVID-19 pandemic: a national matched cohort study. Psychology Research and Behavior Management, 4461-4477. https://doi.org/10.2147/PRBM.S421165 

Stephenson, T., Pinto Pereira, S. M., Nugawela, M, D., McOwat, K., Simmons, R., Chalder, T., ... & Shafran, R. (2023). Long COVID—six months of prospective follow-up of changes in symptom profiles of non-hospitalised children and young people after SARS-CoV-2 testing: A national matched cohort study (The CLoCk) study. Plos one, 18(3), e0277704. https://doi.org/10.1371/journal.pone.0277704 

2022

Bertran, M., Pereira, S. M. P., Nugawela, M. D., Stephenson, T., Shafran, R., Ford, T., ... & Ladhani, S. N. (2022). The relationship between post COVID symptoms in young people and their parents. Journal of Infection, 85(6), 702-769. https://doi.org/10.1016/j.jinf.2022.10.005 

Bertran, M., Pinto Pereira, S. M., Nugawela, M. D., Stephenson, T. J., Shafran, R., Ford, T., ... & Ladhani, S. N. (2022, August 14). Association between Parents Experiencing Ongoing Problems from COVID-19 and Adolescents Reporting Long COVID Six Months after a Positive or Negative SARS-CoV-2 PCR-Test: Prospective, National Cohort Study in England. Journal of Infection. https://doi.org/10.1016/j.jinf.2022.10.005 

Nugawela, M. D., Stephenson, T., Shafran, R., De Stavola, B. L., Ladhani, S. N., Simmons, R., ... & Pinto Pereira, S. M. (2022). Developing a model for predicting impairing physical symptoms in children 3 months after a SARS-CoV-2 PCR-test: The CLoCk Study. BMC Medicine. https://doi.org/10.1186/s12916-022-02664-y 

Nugawela, M. D., Stephenson, T., Shafran, R., De Stavola, B. L., Ladhani, S. N., Simmons, R., ... & Pinto Pereira, S. M. (2022). Predictive model for long COVID in children 3 months after a SARS-CoV-2 PCR test. BMC medicine, 20(1), 465. https://doi.org/10.1186/s12916-022-02664-y 

Pinto Pereira, S. M., Shafran, R., Nugawela, M. D., Panagi, L., Hargreaves, D., Ladhani, S. N., ... & Stephenson, T. (2022). Natural course of health and well-being in non-hospitalised children and young people after testing for SARS-CoV-2: A prospective follow-up study over 12 months. The Lancet Regional Health-Europe, 100554. https://doi.org/10.1016/j.lanepe.2022.100554 

Stephenson, T., Allin, B., Nugawela, M. D., Rojas, N., Dalrymple, E., Pinto Pereira, ... & Shafran, R. (2022). Long COVID (post-COVID-19 condition) in children: a modified Delphi process. Archives of Disease in Childhood. https://doi.org/10.1136/archdischild-2021-323624 

Stephenson, T., Pinto Pereira, S. M., Shafran, R., Stavola, B. L. de, Rojas, N., McOwat, K., ... & Chalder, T. (2022). Physical and mental health 3 months after SARS-CoV-2 infection (long COVID) among adolescents in England (CLoCk): a national matched cohort study. The Lancet Child & Adolescent Health. https://doi.org/10.1016/S2352-4642(22)00022-0 

Stephenson, T., Shafran, R., & Ladhani, S. N. (2022). Long COVID in children and adolescents. Current Opinion in Infectious Diseases, 35(5), 461–467. https://doi.org/10.1097/qco.0000000000000854 

2021

Behnood, S., Shafran, R., Bennett, S., Zhang, A., O’Mahoney, L., Stephenson, T., ... & Swann, O. (2021). Persistent symptoms following SARS-CoV-2 infection among children and young people: a meta-analysis of controlled and uncontrolled studies. Journal of Infection. https://doi.org/10.1016/j.jinf.2021.11.011 

Stephenson, T., Shafran, R., Stavola, B. D., Rojas, N., Aiano, F., Amin-Chowdhury, Z., McOwat, K., ... & Ladhani, S. N. (2021). Long COVID and the mental and physical health of children and young people: national matched cohort study protocol (the CLoCk study). BMJ Open, 11(8), e052838. https://doi.org/10.1136/bmjopen-2021-052838