Table 1

Mean serum glucose, insulin, and C peptide values in the patient groups according to diagnosis

Patients	Classification	Glucose [n] (mmol/l)	Insulin [n] (pmol/l)	C-peptide [n] (pmol/l)
Values are mean (SD).
o/d, overdose; NICTH, non-islet cell tumour hypoglycaemia.
Neonates	Hypoinsulinaemic	1.9 (0.7) [5]	24 (5) [3], <10 [2]	107 (5) [2]
		range, 0.9–2.7	range, <10–29	range, 104–111
	Hyperinsulinaemic	2.0 (0.5) [10]	185 (206) [10]	1119 (1059) [6]
		range, 1.3–2.7	range, 34–705	range, 433–3191
Infants	Hypoinsulinaemic	1.7 (0.8) [8]	21 (8) [2], <10 [6]	243 [1], <100 [4]
		range, 0.5–2.5	range, <10–27
	Hyperinsulinaemic	1.9 (0) [2]	281 (274) [2]	– [0]
		range, 1.9	range, 87–475
Adults	Hypoinsulinaemic (ketotic)	1.9 (0.9) [6]	19 (8) [3], <10 [3]	192 (129) [2], <100 [2]
		range, 0.5–3.0	range, <10–26	range, <100–284
	Hypoinsulinaemic (deceased)	2.1 (0.6) [6]	14 (6) [3], <10 [3]	215 (74) [3], <100 [2]
		range, 1.4–2.6	range, <10–18	range, <100–272
	Hypoinsulinaemic (NICTH)	1.2 (1.1) [2]	<10 [2]	<100 [2]
		range, 0.5–2.0
	Hyperinsulinaemic (insulin o/d)	1.5 (0.8) [9]	3028 (4850) [9]	<100 [9]
		range, 0.2–2.6	range, 124–14100
	Hyperinsulinaemic (sulphonylurea o/d)	1.4 (0.2) [5]	215 (148) [5]	2945 (1710) [5]
		range, 1.1–1.7	range, 49–350	range, 1107–5575
	Hyperinsulinaemic (endogenous)	1.8 (0.5) [15]	328 (306) [14]	1643 (1013) [15]
		range, 0.8–2.4	range, 47–979	range, 474–3716