Sexual dimorphism of bones has been extensively studied in different regions by numerous authors. It is established that, the regional variations exists in the statistical values of the parameters. The present study is done to find out the standard statistical values for the sex determination with humerus. In the present study, the length, epicondylar width, mid-shaft circumference and vertical diameter of the head have been measured in 212 adult humeri of known sex (142 males and 70 females) from the Marathwada region of Maharashtra state. Index (I) was calculated and data was generated for each parameter. The data was also analysed by multivariate analysis method. The mean values of the parameters differed from those of previous studies for other regions. In the present study, the length of the humerus was found to be the most significant parameter for the sex determination. From the data, 42.26% right and 38.66% left male humeri could be sexed correctly and in case of female 25.71% right and 31.42% left humeri could be sexed correctly. Also, by using multivariate technique, the percentage of the humeri that could be sexed correctly markedly increased. 97% right and 96.5% left male humeri could be sexed correctly while 97.5% right and 91% left female humeri could be sexed correctly.

Key words: Sexual dimorphism, humerus, marathwada region, demarking points, multivariate analysis.