Table I.

Characteristics of the study population post tonsillectomy.

Characteristic	Value
Total patients with post-operative cognitive dysfunction	186 (100)
Gender
Male	90 (48)
Female	96 (52)
Median age, years (range)	8.5 (6–12)
MMSE	16.5±3.2
MONEX-40	134.4±12.5
Pain scores	7.2±2.4
Drug therapy	186 (100)
DEX	112 (60)
Placebo	74 (40)

Values are expressed as n (%) or as the mean ± standard error of the mean unless otherwise specified. MMSE, Mini Mental State Examination; MONEX-40, 40-item quality of life questionnaire; DEX, dexmedetomidine.