Table 2. Risk factors for postoperative CSF leak.

Outcome	OR	Lower bound	Upper bound	p -Value
Pituitary adenoma resection vs. other	2.3	0.9	5.7	0.07
Microscopic vs. endoscopic	1.4	0.9	2.3	0.18
History of TSS vs. no history of TSS	0.9	0.2	4.5	0.87
Intraoperative CSF leak vs. no intraoperative CSF leak	5.9	3.8	9.0	0.00 a
Cavernous sinus invasion vs. no cavernous sinus invasion	3.0	1.1	8.7	0.04 a

Abbreviations: CSF, cerebrospinal fluid; OR, odds ratio; TSS, transsphenoidal surgery.

^aSignificant.