Table 5. Relation to failure of biological therapy and presence of infertility, TB, and comorbidities .

TB; tuberculosis

Variable		Biological failure		χ2	P-Value
		Absent No. (%)	Present No. (%)
TB	Yes	23 (56.1)	18 (43.9)	0.11	0.73
	No	173 (58.8)	121 (41.2)
Comorbidity	Yes	116 (58.3)	83 (41.7)	0.009	0.92
	No	80 (58.8)	56 (41.2)