. 2009 Jun 3;37(1):94–100. doi: 10.1093/schbul/sbp055

Table 3.

Characteristics of Positive Assays in 1401 CATIE Subjects

	Serum Levels		Sample Total	% Positive
	Weak Positive	Strong Positive
	tTG = >20 and <30	tTG ≥ 30
Age at interview
Mean years	45.1	43.6	40.6
SE	1.147	1.873	0.296
Gender
Males	38	13	1040	4.9
Females	17	8	361	6.9
Total			1401
Race/ethnicity^a
White	29	11	843	4.7
Black	22	9	488	6.3
Other^b	4	1	68	7.4
Total			1399

	AGA = >20 and <30	AGA ≥ 30	Sample Total	% Positive
Age at interview
Mean years	41.1	42.4	40.3
SE	0.835	0.798	0.343
Gender
Males	103	126	1040	22.0
Females	52	42	361	26.0
Total			1401
Race/ethnicity^a
White	83	83	843	19.7
Black	63	77	488	28.7
Other^b	9	8	68	25.0
Total			1399

Note: CATIE, Clinical Antipsychotic Trials of Intervention Effectiveness; tTG, antibody to transglutaminase; AGA, antibody to gliadin.

Race data are missing on 2 subjects.

“Other” races for tTG positives were Asians at both the weak and strong serum-positive levels.

“Other” races for AGA positives included weak positive serum level = 1 American Indian or Alaskan Native, 4 Asians, and 4 subjects designated as 2 or more races; strong positive serum level = 1 American Indian or Alaskan native, 2 Asians, 2 native Hawaiian of other Pacific islander and 3 subjects designated as 2 or more races.