Study sites: | Thiruvananthapuram (formerly called Trivandrum), Kerala, India |
Principal investigator (PI) from IARC: | R. Sankaranarayanan |
PIs from collaborating institutions: | K. Ramadas (PI), S. Thara, Beela Sarah Mathew, Elizabeth Abraham, Gigi Thomas, Jem Prabhakar, Paul Augustine, Ramani Wesley, R. Rejnish Kumar, Regional Cancer Centre (RCC), Thiruvananthapuram, Kerala, India |
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Start date: | 1995 |
Closure date: | Ongoing |
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Study outcomes: | In 1996–2004, three rounds of oral visual inspection were provided by trained health workers at 3-year intervals to eligible individuals (aged ≥ 34 years) in the intervention group. We reported a 35% decrease in mortality rate among the tobacco users/alcohol consumers of the intervention group compared with the control group. This evidence was used by India’s National Programme for Prevention and Control of Cancer, Diabetes, Cardiovascular Disease and Stroke (NPCDCS) to support their recommendation of oral visual screening of the population. | Publications: | Sankaranarayanan R., Ramadas K., Thara S., Muwonge R., Thomas G., Anju G., Mathew B. Long term effect of visual screening on oral cancer incidence and mortality in a randomized trial in Kerala, India. Oral Oncol. 2013;49(4):314-21. PMID: 23265945 Ramadas K., Sauvaget C., Thomas G., Fayette J.M., Thara S., Sankaranarayanan R. Effect of tobacco chewing, tobacco smoking and alcohol on all-cause and cancer mortality: a cohort study from Trivandrum, India. Cancer Epidemiol. 2010;34(4):405-12. PMID: 20444665 Subramanian S., Sankaranarayanan R., Bapat B., Somanathan T., Thomas G., Mathew B., Vinoda J., Ramadas K. Cost-effectiveness of oral cancer screening: results from a cluster randomized controlled trial in India. Bull World Health Organ. 2009;87(3):200-6. PMID: 19377716 Sankaranarayanan R., Ramadas K., Thomas G., Muwonge R., Thara S., Mathew B., Rajan B.; Trivandrum Oral Cancer Screening Study Group. Effect of screening on oral cancer mortality in Kerala, India: a cluster-randomised controlled trial. Lancet. 2005;365(9475):1927-33. PMID: 15936419 Ramadas K., Sankaranarayanan R., Jacob B.J., Thomas G., Somanathan T., Mahé C., Pandey M., Abraham E., Najeeb S., Mathew B., Parkin D.M., Nair M.K. Interim results from a cluster randomized controlled oral cancer screening trial in Kerala, India. Oral Oncol. 2003 Sep;39(6):580-8. PMID: 12798401 |
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