Discriminant Function Analysis of Foramen Magnum Variables in South Indian Population: A Study of Computerised Tomographic Images

Table 1

The number and percentages of various shapes of FM in CT scans.

Types of shapes	Male CT scans		Female CT scans		Combined CT scans
	No.		No.		No.
Oval	38	35.0	35	39.0	73	36.5
Egg	10	9.0	8	8.9	18	9
Round	11	10.0	6	6.6	17	8.5
Tetragonal	8	7.2	6	6.6	14	7
Pentagonal	5	4.5	4	4.5	09	4.5
Hexagonal	16	14.5	14	15.5	30	15
Irregular (A)	12	10.8	9	10.0	21	10.5
Irregular (B)	10	9.0	8	8.9	18	9
Total	110	100	90	100	200	100