Table 1.

 Number of elevated antiphosphatidylserine antibody (APSA) levels in 34 patients with normal tension glaucoma (NTG) and different otoacustic characteristics as well as 40 healthy controls. Fisheŕs exact test

Immunoglobulin (Ig) class of APSA	Number of NTG patients with elevated antibody concentrations
	Presbyacusis (n = 12)	PSHL (n = 11)	Normacusis (n = 11)	Controls (n = 40)
IgG	7 (58%)*†	9 (82%)**‡	3 (27%) **§	3 (7.5%)**¶
IgM	7 (58%)	7 (64%)*‡	7 (64%)	10 (25%)**¶
IgG + M	4 (33%)	5 (45%)ns‡	3 (27%)	11 (27.5%)ns¶

*p<0.05; **p<0.01. †v PSHL; ‡v control; §v presbyacusis and PSHL; ¶v NTG groups together.