Table 2.

Comparison of ELISA, CBA, and IHC results.

	ELISA initially positive cases		ELISA initially negative cases
	DM1/LADA (n = 40)	NP (N = 7)	NP (n = 64)
ELISA retested GAD65-Abs+*	38 (95%)	6 (85.7%)	1 (1.6%)
CBA GAD65-Abs+	8 (20%)	3 (42.9%)	0
IHC GAD65-Abs+	5 (12.5%)	3 (42.9)	0
IHC positive for other Abs	2 (5%)	0	2 (3.1%)
	CBA GAD65-Abs+		CBA GAD65-Abs−**
	DM1/LADA (n = 8)	NP (N = 3)	DM1/LADA (n = 32)	NP (N = 4)
CBA GAD67-Abs+***	6 (75%)	3 (100%)	0	0
IHC GAD65-Abs+	5 (62.5%)	3 (100%)	0	0

*GAD65-Abs+: Positive for GAD65 autoantibodies;

**GAD65-Abs−: Negative for GAD65 autoantibodies

***GAD67-Abs+: Positive for GAD67 autoantibodies.