ABSTRACT
The clinical entity termed as long COVID has gained importance in the recent past. As this phenomenon is still evolving, it is important to document the magnitude of the syndrome during different time periods. This scoping review attempts to synthesize evidence generated from longitudinal studies which have follow‑up periods beyond 3 months, up to 12 months. The review also documents the reported prevalence of long COVID for the different regions of the World Health Organization. Longitudinal studies published till March 2022 were systematically searched on PubMed, Google Scholar, and medRxiv. Among the identified 594 studies, 48 were included in this review. Data from selected studies were synthesized. The overall pooled prevalence of long COVID was 49% (40%–58%). The pooled estimates after 3 months, 4–6 months, 7–9 months, and 10–12 months were 44% (32%–57%), 50% (43%–57%), 49% (37%–62%), and 54% (46%–62%), respectively. Eastern Mediterranean Region (EMR) had the highest pooled prevalence of 63% (34%–92%] and the South East Asian Region (SEAR) had the least pooled estimate of 15% (10%–21%). The study brings out the high prevalence of long COVID even after 12 months of follow‑up. It also shows the regional differences in the reported prevalence of the syndrome. This review highlights the need for well‑planned follow‑up studies, especially in developing nations to understand the magnitude and the pattern of long COVID‑related symptoms as they emerge.
ABSTRACT
BACKGROUND Persistence of symptoms following Covid-19 infection has now been recognized as an upcoming public health crisis. Understanding these persistent symptoms and quantifying them is vital in planning care for these patients. Studies from India estimating the magnitude of these persistent symptoms are scarce. We aimed to estimate the proportion of symptoms that persist among patients who have recovered from Covid-19 infection. METHODS We conducted this descriptive study among 114 individuals after they recovered from Covid-19 infection. Participants diagnosed as Covid-positive at a tertiary care centre were included in the study. Data were collected from the participants through an online platform. Frequency and proportion of various persistent symptoms were estimated. Analysis was done using SPSS version 16. RESULTS The mean (SD) age of the study participants was 35.5 (15.7) years. Women comprised 62.3% (n=71) of the population. Persistent symptoms were reported by 66 (57.9%; 95% CI 53.07–62.72) participants. The most common symptoms reported were fatigue (n=45, 39.5%) and joint pain (n=23, 20.2%). Those who required hospitalization for longer duration were found to be more associated with having persistent symptoms (p=0.018). CONCLUSION A sizable proportion of individuals had persistent symptoms after recovering from Covid-19 infection. Health facilities should be equipped to address these emerging issues.