IntroductionBody mass index is a valuable tool to assess the nutritional status of an individual. It can be conveniently used to identify those who are underweight, overweight or obese. In the past decade, occurrence of overweight and obesity are very high affecting both developed and developing countries like Bangladesh. In Bangladesh, there is a nutritional transition from typical carbohydrate diet to fast food dietary habits, particularly young adults like medical students have been affected. Adverse effect of overweight and obesity is associated with a large number of debilitating and life threatening disorders like cardiovascular, metabolic and other non communicable diseases 1 . The increasing rates of overweight and obesity are a result of changing lifestyles and industrialization with the associated increasing rate of television viewing and playing with computer games, consumption of high calorie and high fat foods coupled with low levels of energy expenditure in the form of low physical activity 2 .

Background : The study was carried out in the department of neurosurgery, BSMMU, Dhaka during the period of July 2003 to June 2005. Objective: This study was done to elucidate the relationship between age groups and histopathologicas subtypes in case of intracranial astrocytoma patients. For this purpose, a total number of 44 cases were studied. Results: The mean age of all the patients was 33.1 years (range:1-65 years). The highest incidence was found in the age group of 20 years or below group. Male were more commonly effected than female. WHO grade I astrocytoma was the commonest type. Mean age of low grade astrocytoma (WHO grade II) and glioblastoma were nearly similar to other studies, but the mean age of presentation of grade I astrocytomas patients was little late and for anaplastic actrocytoma a little early in comparison to other study. Conclusion: This showed subtype of astrocytoma has definitive relation to age. Bangladesh Journal of Neuroscience 2011; Vol. 27 (2) : 87-93 DOI: http://dx.doi.org/10.3329/bjn.v27i2.17575