Table 2 The concordance between AC2-generated CT results for both nurse-taken and patient-taken swabs from rectal and pharyngeal sites and comparison with the routine clinic SDA result

SDA result	Nurse-taken swab AC2 CT result	Patient-taken swab AC2 CT result	Number*
Rectal specimens (258 participants)
−	−	−	218
+	+	+	28
−	+	+	1
−	Equ	−	1
−	Equ	+	1
+	Equ	+	4
−	−	+	2
+	−	Equ	1
+	−	−	2
Pharyngeal specimens (265 participants)
	−	−	257
	+	+	3
	−	+	2
	+	Equ	1
	+	−	2

Equ, equivocal test result; −, negative test result; +, positive test result.
*The number of participants with this combination of test results.
CT, C trachomatis; SDA, strand displacement assay.