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. Author manuscript; available in PMC: 2010 May 10.
Published in final edited form as: Arch Intern Med. 2009 Jul 27;169(14):1307–1316. doi: 10.1001/archinternmed.2009.193

Table 2. Diabetes Management by Treatment Group During the DCCT/EDIC and EDC Studies.

Conventional
Intensive
DCCT
EDIC
EDC
DCCT
EDIC
Diabetes
Management
Year 1
(n=730)
Closeout
(n=723)
Year 6
(n=660)
Year 12
(n=606)
Year 1
(n=161)
Year 10
(n=105)
Year 18
(n=88)
Year 1
(n=711)
Closeout
(n=698)
Year 6
(n=654)
Year 12
(n=620)
Insulin delivery, %
 CSII 0.1 1.5 22.6 45.2 2.5 6.7 38.6 29.8 41.4 37.9 48.4
 MDI 1.0 3.6 57.4 49.3 4.3 36.2 37.5 70.0 56.0 56.8 48.9
 1-2 Injections 98.9 94.9 19.4 5.1 89.4 53.4 15.9 0.3 2.6 5.1 2.1
Insulin dose,
 mean (SD), U/kg/d
0.68 (0.25) 0.66 (0.20) 0.67 (0.21) 0.64 (0.25) 0.90 (0.25) 0.75 (0.22) 0.72 (0.22) 0.73 (0.26) 0.71 (0.24) 0.73 (0.25) 0.68 (0.27)
Self-monitoring blood
 glucose, %
 (≥4 times/d)
1.7 3.7 43.5 63.7 NA 23.8 46.6 69.1 52.9 47.1 56.1

Abbreviations: CSII, continuous subcutaneous insulin infusion (external insulin pump); DCCT, Diabetes Control and Complications Trial; EDC, Pittsburgh Epidemiology of Diabetes Complications Experience; EDIC, Epidemiology of Diabetes Interventions and Complications; MDI, multiple (≥3) daily injection therapy; NA, not applicable.