{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T14:00:05Z","timestamp":1789999205938,"version":"4.0.1"},"reference-count":37,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"5","license":[{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Post-coronavirus disease 2019 (COVID-19) condition, or long COVID, persists beyond the acute phase, impacting quality of life. This study estimated the incidence and determinants of post-COVID syndrome (PCS) in Puducherry, India.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>This ambispective cohort study from May to December 2022 included 1162 adults with COVID-19. Participants were stratified by disease severity (moderate\/severe and mild) based on clinical parameters during acute illness. We conducted follow-ups at 1, 3, 6, and 12 months. PCS was defined as having \u2265two of five common symptoms (fatigue, joint\/muscle pain, breathing difficulty, loss of smell\/taste, or sleep problems). Relative risks (RR) and 95% confidence intervals (CI) were estimated using binomial regression with a Poisson link, adjusting for socio-demographic and clinical factors.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Incidence of PCS was consistently higher in the moderate\/severe group. At 1, 3, 6, and 12 months, incidence was 65.6%, 37.7%, 24.4%, and 34.4% for moderate\/severe cases, and 24.3%, 11.0%, 7.1%, and 16.9% for mild cases, respectively. Moderate\/severe cases had significantly higher RR of 2.70 at 1 month (95% CI: 2.31\u20133.15), 3.42 at 3 months (95% CI: 2.65\u20134.40), 3.46 at 6 months (95% CI: 2.49\u20134.80), and 2.04 at 12 months (95% CI: 1.65\u20132.52), all\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.001. Independent risk factors for PCS included rural residence, comorbidities, complications during hospitalization, and age over 30 years.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Moderate\/severe COVID-19 severity and specific socio-demographic and clinical factors were associated with an elevated risk of PCS. Early identification and targeted follow-up are recommended to mitigate long-term impacts.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/ijcm.ijcm_612_25","type":"journal-article","created":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T17:02:25Z","timestamp":1789750945000},"page":"842-849","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Incidence and Determinants of Post-Coronavirus Disease Syndrome by Disease Severity: An Ambispective Cohort Study from a Tertiary Care Hospital in Puducherry"],"prefix":"10.4103","volume":"51","author":[{"given":"SR","family":"Renjana","sequence":"first","affiliation":[{"name":"Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mahadevan","family":"Duraiswamy","sequence":"additional","affiliation":[{"name":"Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Venkatachalam","family":"Jayaseelan","sequence":"additional","affiliation":[{"name":"Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arulprasad","family":"Radjasegarane","sequence":"additional","affiliation":[{"name":"Department of Community Medicine, Aarupadai Veedu Medical College, Kirumampakkam Bahour Commune Panchayat, Puducherry, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mukta","family":"Wyawahare","sequence":"additional","affiliation":[{"name":"Department of Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sitanshu Sekhar","family":"Kar","sequence":"additional","affiliation":[{"name":"Department of Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ravivarman","family":"Lakshmanasamy","sequence":"additional","affiliation":[{"name":"Early Detection, Prevention, and Infections Branch, International Agency for Research on Cancer, World Health Organization, Lyon, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vanessa","family":"Ravel","sequence":"additional","affiliation":[{"name":"Independent Research Consultant, Puducherry, 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