Table 8.

Relationship between edentulous state and socio-economic status.

Socio-economic status	Edentulous state				Total
	Partial		complete
	No	%	No	%	No	%
Class I	27	96.4	1	3.6	28	18.4
Class II	33	76.7	10	23.3	43	28.3
Class III	74	91.4	7	8.6	81	53.3
Total	134	88.2	18	11.8	152	100

χ² = 7.992, df = 2, P = 0.018