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. 2007 Jan 17;22(2):215–222. doi: 10.1007/s11606-006-0072-5

Table 1.

Baseline Characteristics*

  Intervention (n = 613) Control (n = 557) P-value for two-sample t test
Percent male 64% (48%) 59% (49%) 0.09
Mean age in years 64 (12) 65 (11) 0.54
White 87% (33%) 91% (29%) 0.09
African American 5% (22%) 4% (19%) 0.21
Hispanic 2% (12%) 1% (12%) 0.91
At least high school education 42% (49%) 47% (50%) 0.07
Income less than $30,000 41% (49%) 46% (50%) 0.23
Insured 91% (28%) 93% (26%) 0.42
Health maintenance organization 32% (47%) 26% (44%) 0.04
Smoker 55% (50%) 58% (49%) 0.28
Duration diabetes in years 7.7 (7.5) 8.2 (8.2) 0.26
Comorbidity Weighted Score 0.943 (97) 0.962 (96) 0.73
Mean systolic blood pressure (mmHg) 138 (16) 139 (14) 0.33
Total chol/HDL ratio 4.6 (1.4) 4.7 (1.5) 0.08
Mean LDL cholesterol 111 (41) 115 (38) 0.14
Mean HbA1c†† 7.9 (1.8) 7.7 (1.6) 0.02
UKPDS 10-year risk score 30.7% (21%) 31.0% (21%) 0.86

*Characteristics shown above are based on comparisons including imputed data. Standard deviation is noted in parentheses.

Log total chol/HDL is the log of the ratio of total serum cholesterol divided by the high-density lipoprotein level.

††HbA1c is the glycosylated hemoglobin.