Anatomical Variations in Clefts of the Lip with or without Cleft Palate

Table 3

Cleft lip and palate—severity of cleft according to gender and laterality.

	Scotland		Cambridge		Belfast		Liverpool
	C	I	C	I	C	I	C	I
Overall	125	20	273	35	111	17	66	8
Males	81	11	169	17	73	9	55	7
Females	44	9	104	17	38	8	22	2
Right side	52	5	88	16	47	5	23	4
Left side	73	15	185	19	64	12	53	7
Males—left	45	8	115	9	42	6	37	5
Females—left	28	7	70	9	22	6	16	1
Males—right	36	3	54	8	31	3	17	2
Females—right	16	2	34	8	16	2	6	1

These figures for CLP reveal a reasonable level of consistency across regions in proportions of complete to incomplete clefts with complete clefts being consistently more prevalent than incomplete clefts. Bilateral clefts were excluded from this analysis.