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Table 2 Sample Demographics for Study Overall and By Intervention Arm

From: Financial incentives to improve glycemic control in African American adults with type 2 diabetes: a pilot randomized controlled trial

  Overall Sample Group 1 Group 2 Group 3 P-value
Mean (standard deviation or percent)
Age 57.4 (11.4) 58.1 (14.1) 57.5 (8.8) 58.2 (9.6) 0.106
Duration of Diabetes 16.6 (10.8) 18.6 (13.4) 17.7 (9.2) 17.2 (11.4) 0.297
Yrs of Education 13.1 (2.8) 12.8 (1.7) 12.3 (1.8) 14.9 (2.6) 0.109
Sex
 Male 29.5% 25% 37.5% 37.5% 0.758
 Female 70.5% 36.6% 29.3% 34.2%  
Marital Status
 Married 29.6% 37.5% 12.5% 50% 0.128
 Not Married 70.4% 31.7% 39% 29.3%  
Income
 Less than $20,000 51.1% 40% 40% 20% 0.326
 $20,000–$49,999 30.7% 27.3% 27.3% 45.5%  
 $50,000 and more 18.2% 30% 20% 50%  
Insurance
 Uninsured 5.7% 60% 0% 40% 0.321
 Private 44.3% 40% 28% 32%  
 Medicare 31.8% 23.5% 29.4% 47.1%  
 Medicaid 13.6% 25% 62.5% 12.5  
 Other 4.6% 0% 50% 50%