Table 3. Gender ratios for isolated and comorbid learning disorders.

	1 sd		1.25 sd		1.5 sd
Deficit	% male	χ2	% male	χ2	% male	χ2
RD total	54.7	1.7	54.0	0.7	51.7	0.1
SD total	55.5	2.6	55.2	1.8	55.2	1.2
AD total	40.8	7.9**	38.1	7.4**	37.5	5.0*
RD only	51.9	0.1	56.0	1.0	53.2	0.2
SD only	62.4	6.0*	61.6	5.4**	61.0	3.5
AD only	32.9	9.2**	35.2	4.6**	38.5	1.9
RD+SD	66.7	5.4*	63.2	2.4	62.1	1.5
RD+AD	56.7	0.4	50.0	0.0	42.9	0.2
SD+AD	35.6	4.1*	38.7	1.8	37.5	1.1
RD+SD+AD	47.4	0.2	38.7	1.8	33.3	2.2

*p<.05;

**p<.01 (two-sided).