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

From: Age at diagnosis of diabetes in Appalachia

  Change in average age at time of diagnosis relative to reference level (95% CI) p-value
Appalachian Regional Commission development categorya   
   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 Incomeb   
   ≥ $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
  1. a The Appalachian Regional Commission classifies Appalachian counties as: distressed (worst 10%, when compared to all counties in the nation), at-risk (between the worst 10% and 25%), transitional (between the worst 25% and best 25%), competitive (between the best 25% and 10%), and achievement (best 10%).
  2. b Income is in dollars as of time of survey.