Table 1.

Clinicopathologic characteristics comparing patients with and without pre-operative clinical insomnia

Variable	Without Insomnia	With Insomnia	P
n (%)	86 (74.8)	29 (25.2)	.
Age, mean ± SEM, yr	61.0± 1.4	56.7 ± 2.2	0.1
Females, n (%)	67 (72.8)	25 (27.2)	0.4
Serum calcium, mean ± SEM, mg/dL	10.7 ± 0.08	10.9± 0.1	0.6
Serum parathyroid hormone, mean ± SEM, pg/mL	103 ± 6	106 ± 14	0.2
Pathology, n (%)
Single adenoma	70 (81.4)	19 ( 65.5)
Double adenoma	6 (7.0)	5 (17.2)	0.1
Hyperplasia	10 (11.6)	5 (17.2)
Gland weight, mean ± SEM, mg	604.3 ± 115.9	1045.8 ± 443.9	0.1
Obstructive sleep apnea, n (%)	11 (12.8)	4 (13.8)	1.0

SEM = Standard error of the mean