Skip to main content
. 2017 May 4;12(5):e0175442. doi: 10.1371/journal.pone.0175442

Table 2. Description of domains, items, and distribution of correct answers for the Diabetes Numeracy Test (DNT-15) (N = 176).

Domain (item) Math Problem Type Answered Correctly n(%)
Nutrition and Exercise (item 1–4)
1.Calculate Carbohydrates using food label Multiplication/Division 65(36.9)
2.Calculate Carbohydrates using food label Fraction/Decimal 69(39.2)
3.Calculate Carbohydrates using food label Fraction/Decimal 98(55.7)
4.Exercise Management Multi-step Mathematics 81(46)
Blood Glucose Monitoring (item 5–6)
5.Recognize normal glucose range Numeration/Counting/Hierarchy 96(54.5)
6.Calculate number of test strips needed for travel Multiplication/Division 117(66.5)
7.Test strip management Time Management 108(61.4)
Medication (item 8–15)
8.Oral Medication and time management Addition/Subtraction 137(77.8)
9.Insulin dosing using insulin: carbohydrates ratio Multiplication/Division 118(67)
10.Sliding scale insulin use Numeration/Counting/Hierarchy 116(65.8)
11.Carbohydrates counting, multistep insulin management Multi-step Mathematics 81(46)
12.Carbohydrate counting, multistep insulin management Multi-step Mathematics 114(64.8)
13.Multistep insulin management Multi-step Mathematics 65(36.9)
14.Multistep insulin Management Multi-step Mathematics 58(33)
15. Insulin dosing using syringe with analog scale Numeration/Counting/Hierarchy 83(47.2)