Rabson-Mendenhall syndrome caused by a novel splice-site mutation (c.1123+2 T>C) of insulin receptor: A case report and review of literature

Table 1 Results of the follow-up in the past 5 years

Time	Fasting C-peptide (ng/mL)	Postprandial C-peptide (ng/mL)	Fasting insulin (IU/mL)	Postprandial insulin (IU/mL)	HbA1c	Urine sugar	Urine ketone bodies
2011	8.09	25.32	272.4	> 1000	5.6%	+	+
2019	7.67	22.37	328.36	327.99	8.6%	3+	4+
2022	7.17	20.2	> 200	> 200	13%	4+	4+
2023	4.9	17.8	> 200	> 200	12.6%	3+	4+
2024	4.5	16.7	> 200	> 200	11.2%	3+	4+
2025	3.07	14.3	> 200	> 200	11.5%	2+	3+

HbA1c: Glycated hemoglobin A1c.