Morphometric study of thyroid angle in different age and sex in Bangladeshi cadaver.

This cross sectional descriptive study was to measure the thyroid angle and to establish the difference between sexes of different age groups in Bangladeshi cadaver. A total 60 human larynges were collected by purposive sampling from October 2008 to March 2009. Among them 45(male 23 and female 22) were collected from Bangladeshi cadavers (9 to 60 years) at the autopsy laboratory of Department of Forensic Medicine and 15 (male 6 and female 9) from stillborn infants of viable age (28 to 40 weeks of gestation) from Gynaecology and Obstetrics Department of Mymensingh Medical College, Mymensingh. The thyroid angle was measured and significant differences of the dimensions between different age and sex groups were observed. In the present study observed findings was compared with those of other researchers. The mean±SD thyroid angle was found as 65.00±11.65 degree in age Group A (28 to 40 weeks of gestation), 73.69±6.56 degree in age Group B (9 to 16 years) and 77.76±7.76 degree in age Group C (17 to 60 years). The mean thyroid angle was higher in female (83.1667±5.78220 degree) than that in male (73.9412±7.09460 degree) and statistically moderately significant in Group C, where t = 3.853 and p = 0.001. In statistical analysis, differences between age and sex groups were calculated by using Students (unpaired) 't' test. The present study revealed that the value was significantly greater in adult female than male and the value increased with age.