Table 2.

Yearly event rate of hospital utilization for hypoglycemia, and repeated events

Year	Total events	Patient’s 1st event	Patient’s 2nd event	Patient’s ≥3rd event	Patients at risk	Events per 1000 patients
Hypoglycemia by ICD-9 codes
2009	260	239	14	6	97 783	2.7
2010	326	273	35	15	128 403	2.5
2011	387	307	39	32	173 360	2.2
2012	441	345	32	47	201 194	2.2
2013	594	415	73	75	253 197	2.3
2014	473	330	46	70	290 075	1.6
2015	425	347	41	32	315 009	1.3
Hypoglycemia by ICD-10 codes—limited algorithm
2015	384	361	22	1	315 009	1.2
2016	1868	1490	228	126	334 978	5.6
2017	2330	1510	291	359	351 670	6.6
2018	2209	1518	297	287	367 340	6.0
2019	2425	1602	353	353	374 945	6.5
Hypoglycemia by ICD-10 codes—expanded algorithm
2015	426	400	24	2	315 009	1.4
2016	2095	1654	260	151	334 978	6.3
2017	2581	1652	320	408	351 670	7.3
2018	2497	1661	337	354	367 340	6.8
2019	2736	1767	404	420	374 945	7.3

ICD, International Classification of Diseases.