Table 2. Urinary C-peptide (CP): comparison above and below assay sensitivity.

	Above CP assay sensitivity n=10	Below CP assay sensitivity n=18	p value
Blood glucose (mg/dl) (<110)	109 ± 68	166 ± 92	0.076
HbA1c (%) (4.5–6.2)	7.3 ± 1.6	8.5 ± 1.1	0.065
Serum cortisol (μg/dl) (3.8–18.4)	22.3 ± 4.4	21.3 ± 6.0	0.594
Glucagon (pg/ml) (40–180)	104 ± 38	96 ± 43	0.637
Urinary GH SD score	+0.51 ± 0.58	+1.26 ± 0.63	0.006
Urinary cortisol (μg/gCr)	299 ± 175	215 ± 205	0.232
Urinary adrenaline (μg/gCr)	22.2 ± 23.8	22.6 ± 19.8	0.886