Table 1. Insulin titration.

Blood glucose levels before each meal and at bedtime	Titration of bolus insulin dosage (U) before each meal and basal insulin dosage (U) at bedtimea
>270 mg/dL	+4
221–270 mg/dL	+3
171–220 mg/dL	+2
121–170 mg/dL	+1
81–120 mg/dL	Maintain dose
60–80 mg/dL	−2
<60 mg/dL	−4

^aWhen blood glucose level before lunch, supper or at bedtime was elevated, bolus insulin dosage before breakfast, lunch or supper was titrated, respectively; and when fasting blood glucose level was elevated, basal insulin dosage at bedtime was titrated.