Table 1

Descriptive Statistics For the Study Sample (N = 4,117)

Study VariableTotalNot Depressed n=3,622 (88%)Depressed n=495 (12%)P Value
Any prebaseline hypoglycemic episode,a % (No.)3.7 (153)3.1 (113)8.1 (40)<.001
Any postbaseline hypoglycemic episode,b % (No.)6.9 (283)6.4 (230)10.7 (53)<.001
Female, % (No.)48.1 (1,981)46.7 (1,690)58.8 (291)<.001
Age, mean (SD), y63.4 (13.4)64.0 (13.3)59.4 (13.8)<.001
White, % (No.)80.1 (3,299)80.3 (2,910)78.6 (389).37
Married, % (No.)65.4 (2,693)66.8 (2,418)55.6 (275)<.001
Some college (≥1 year), % (No.)76.2 (3,134)76.6 (2,774)72.4 (360).06
Type 2 diabetes, % (No.)95.6 (3,933)95.4 (3,457)96.2 (476).47
Duration of diabetes, mean (SD), y9.6 (9.4)9.6 (9.6)9.6 (8.3).87
Taking insulin, % (No.)30.6 (1,259)28.9 (1,047)42.8 (212)<.001
RxRisk score, mean (SD)c3,133.7 (2,441.0)3,093.0 (2,386.3)3,431.4 (2,793.5).01
Hypertension diagnosis, % (No.)74.5 (3,069)74.3 (2,687)75.7 (373).54
Diabetes complications, mean (SD), No.1.4 (1.3)1.4 (1.3)1.6 (1.4)<.001
Body mass index, mean (SD)31.5 (7.3)31.1 (6.8)34.8 (9.3)<.001
Current smoker, % (No.)8.4 (347)7.6 (276)14.3 (71)<.001
Physical activity score, mean (SD)d2.7 (2.2)2.8 (2.2)1.9 (1.4)<.001
• a Percentage with hypoglycemic episode in 5 years prebaseline.

• b Percentage with hypoglycemic episode in 5 years postbaseline.

• c For this study population, scored on a range from 71 to 21,950, where higher numbers indicate greater morbidity.

• d Scored on a range from 0 to 7, where higher numbers indicate more days per week of exercise.