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Table 3 Incidence rates of hypoglycemia requiring emergency medical services. (Rates for patients with type 1 diabetes, type 2 diabetes treated with a) non-secretagogues, b) secretagogues, or insulin)

From: Temporal changes in frequency of severe hypoglycemia treated by emergency medical services in types 1 and 2 diabetes: a population-based data-linkage cohort study

Group June 1997–May 1998 1 January 2011–31 December 2012
Incidence ratea
(95% CI)
Events
(person-years)
Incidence ratea
(95% CI)
IRRb
(95% CI)
P value
Type 1 0.115
(0.094–0.136)
319
(3867.35)
0.082
(0.073–0.092)
0.720
(0.580–0.892)
< 0.001
Type 2 a) 0.001
(0.000–0.002)
50
(22,100.36)
0.002
(0.002–0.003)
-- --
b) 0.009
(0.006–0.013)
51
(9318.80)
0.005
(0.004–0.007)
-- --
Insulin 0.118
(0.095–0.141)
282
(7601.69)
0.037
(0.033–0.041)
0.314
(0.249–0.395)
0.008
All type 2 0.017
(0.014–0.020)
383
(39,020.86)
0.010
(0.009–0.011)
0.571
(0.468–0.696)
< 0.001
  1. aIncidence rate is expressed as events per person per year. b IRR incidence rate ratio