Table 2 Linear regression for age at diagnosis of diabetes (years) among those with diagnosed diabetes (N = 22,109)

Appalachian Regional Commission development category^a

   Non-Appalachian

Reference

NA

   Distressed

-2.8 (-4.7, -1.0)

< 0.01

   At-risk

-2.2 (-3.9, -0.4)

0.02

   Transitional

0.2 (-0.8, 1.2)

0.65

   Competitive

0.7 (-1.4, 2.8)

0.50

   Attainment

-0.6 (-3.8, 2.6)

0.71

Sex

   Female

Reference

NA

   Male

-0.0 (-0.8, 0.8)

0.98

Annual Income^b

   ≥ $50,000

Reference

NA

   $35,000 - < $50,000

2.5 (1.2, 3.7)

< 0.01

   $25,000 - < $35,000

4.6 (3.2, 6.1)

< 0.01

   $15,000 - < $25,000

5.0 (3.8, 6.3)

< 0.01

   < $15,000

2.8 (1.6, 4.2)

< 0.01

Race/ethnicity

   Non-Hispanic white

Reference

NA

   Non-Hispanic black

-4.9 (-6.0, -3.9)

< 0.01

   Hispanic or Latino

-6.7 (-9.6, -3.8)

< 0.01

   Non-Hispanic multiracial

-3.2 (-6.4, 0.1)

0.06

   Non-Hispanic other race

-6.1 (-9.1, -3.1)

< 0.01

Education

   Graduated college or technical school

Reference

NA

   Attended but did not complete college

-0.6 (-1.8, 0.7)

0.38

   Graduated high school

0.6 (-0.6, 1.8)

0.30

   Did not graduate high school

2.9 (1.4, 4.3)

< 0.01

Smoking

   No

Reference

NA

   Yes

1.6 (0.7, 2.4)

< 0.01

Physical Activity

   Yes

Reference

NA

   No

0.9 (0.1, 1.7)

0.03

Obesity

   No

Reference

NA

   Yes

-3.1 (-3.9, -2.2)

< 0.01

Any insurance coverage

   Yes

Reference

NA

   No

-6.4 (-7.8, -5.0)

< 0.01

Received medical care in the last year

   Yes

Reference

NA

   No

-3.7 (-5.0, -2.4)

< 0.01