Kasukawa criteria	Seropositive MCTD		Seronegative MCTD		P	OR	95% CI OR
	n	%	N	%			Inf	Sup
Lymphadenopathy	28	40%	17	23%	0.038	2.275	1.105	4.681
Malar rash	25	36%	8	11%	0.001	4.653	1.928	11.231
Leucopenia	41	59%	17	23%	<0.001	4.824	2.348	9.909
Muscle weakness	32	50%	24	32%	0.042	2.125	1.083	4.171
Increase of muscle enzymes	45	64%	35	47%	0.049	2.057	1.056	4.008