Table 2.

Intraoperative Features

Variable	Mild (n = 388)	Overt (n = 1049)	p value
Multigland disease	133 (34.6)	147 (14.1)	<0.01
Slope IoPTH* (pg/min)	−6.9± 0.8	−11.6± 0.6	<0.01
Cured at 5 minutes	207 (53.4)	647 (62.2)	<0.01
Median time to cure	10	5	<0.01
Gamma probe counts# (% of background)	67±3	96 ±2	<0.01
Gland weight (mg)#	365± 18	879 ± 46	<0.01

Data are represented as the mean ± standard error of the mean for continuous variables or as the number in each category with the percentage in parentheses for categorical variables

^*Slopes were compared only for cases where a single adenoma was resected

^#The gamma probe count and weight of the largest gland is reported for cases of multigland disease

pg = picograms; min = minute; mg = milligrams