Levels of A1C, sex, age, and race for the Family Medicine clinic and the Stark Diabetes Center
| June–November 2001 | December 2001–May 2002 | June–November 2002 | December 2002–May 2003 | June–November 2003 | December 2003–May 2004 | June–November 2004 | December 2004–May 2005 | June–November 2005 | |
|---|---|---|---|---|---|---|---|---|---|
| Family Medicine clinic | |||||||||
| A1C (%) | 7.81 ± 1.77 | 7.85 ± 1.94* | 7.75 ± 2.00* | 7.83 ± 2.04* | 7.77 ± 1.97* | 7.85 ± 2.08* | 7.91 ± 1.97* | 7.75 ± 1.88* | 7.69 ± 1.84* |
| Sex (%) | |||||||||
| Female | 64.1 | 61.7 | 63.8 | 64.8 | 64.3 | 64.1 | 63.9 | 62.3 | 62.1 |
| Male | 35.9 | 38.3 | 36.2 | 35.2 | 35.7 | 35.9 | 36.1 | 37.7 | 37.9 |
| Race (%) | |||||||||
| Caucasian | 49.9 | 48.3 | 51.2 | 50.6 | 48.8 | 48.4 | 50.7 | 49.9 | 50.9 |
| Black | 31.2 | 31.8 | 29.7 | 30.2 | 29.4 | 31.7 | 29.5 | 31.9 | 29.6 |
| Hispanic | 18.4 | 18.2 | 18.6 | 17.9 | 20.9 | 18.1 | 19.0 | 15.6 | 17.2 |
| Other | 0.5 | 1.7 | 0.5 | 1.3 | 0.9 | 1.8 | 0.8 | 2.6 | 2.3 |
| Age (years) | 59.2 ± 13.0 | 58.4 ± 12.8 | 57.8 ± 12.9 | 57.9 ± 12.6 | 58.4 ± 12.5 | 58.7 ± 12.4 | 59.6 ± 12.7 | 60.1 ± 12.4 | 60.0 ± 12.5 |
| n (total results) | 652 | 724 | 694 | 786 | 793 | 854 | 788 | 844 | 852 |
| n (total patients) | 650 | 655 | 689 | 783 | 785 | 847 | 780 | 843 | 828 |
| Samples per patient | 1.00 | 1.11 | 1.01 | 1.00 | 1.01 | 1.01 | 1.01 | 1.00 | 1.03 |
| Stark Diabetes Clinic | |||||||||
| A1C (%) | 8.10 ± 1.78 | 7.91 ± 1.70 | 7.75 ± 1.72† | 7.77 ± 1.48 | 7.62 ± 1.68 | 7.44 ± 1.54 | 7.35 ± 1.54 | 7.35 ± 1.55 | 7.41 ± 1.54 |
| P value vs. Family Medicine clinic | 0.003 | 0.53 | 0.98 | 0.67 | 0.072 | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
| Sex (%) | |||||||||
| Female | 58.4 | 54.4 | 56.1 | 55.9 | 58.4 | 55.7 | 59.1 | 54.5 | 56.7 |
| Male | 41.6 | 45.6 | 43.9 | 44.1 | 41.6 | 44.3 | 40.9 | 45.5 | 43.4 |
| Race (%) | |||||||||
| Caucasian | 58.4 | 59.1 | 59.9 | 60.3 | 58.6 | 58.9 | 58.8 | 59.4 | 58.9 |
| Black | 23.8 | 23.7 | 20.7 | 23.8 | 24.1 | 24.9 | 25.4 | 23.6 | 23.9 |
| Hispanic | 15.0 | 16.5 | 16.2 | 14.8 | 14.9 | 14.3 | 13.3 | 15.8 | 15.9 |
| Other | 2.8 | 0.7 | 3.2 | 1.1 | 2.4 | 1.9 | 1.9 | 1.2 | 1.3 |
| Age (years) | 53.9 ± 15.0 | 55.6 ± 14.4 | 56.3 ± 14.9 | 57.3 ± 13.8 | 57.5 ± 13.6 | 58.1 ± 13.3 | 58.2 ± 13.6 | 58.8 ± 13.2 | 59.2 ± 13.4 |
| n (total results) | 698 | 846 | 844 | 969 | 1,105 | 1,198 | 1,224 | 1,372 | 1,294 |
| n (total patients) | 645 | 809 | 753 | 800 | 906 | 993 | 987 | 1,067 | 978 |
| Samples per patient | 1.08 | 1.05 | 1.12 | 1.21 | 1.22 | 1.21 | 1.24 | 1.28 | 1.32 |