Table 4.

Relationship between fluoroquinolone or doxycycline exposure and acquired resistance

Characteristic	Acquired FQ resistance (n = 9)	Acquired Tet resistance (n = 27)	Acquired both FQ and Tet resistance (n = 5)	No acquired resistance (n = 41)
FQ exposed (n = 6)	2 (P = 0.16)	4 (P = 0.19)	2 (P = 0.05)	2 (P = 0.39)
Doxycycline exposed (n = 11)	2 (P = 0.62)	2 (P = 0.19)	0 (P = 1.00)	7 (P = 0.75)
Exposed to neither (n = 55)	5 (P = 0.20)	21 (P = 1.00)	3 (P = 0.59)	32 (P = 0.78)

FQ, fluoroquinolone; Tet, tetracycline; ^*No participants were exposed to both a fluoroquinolone and doxycycline.