Table 5.
Comparison of the Patient Outcomes, 1992 through 1996 for Both Health Care Settings, and 1992 through 1995 for the EMC versus 1994 through 1997 for GHC
| 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | OR [95% CI] NL 1992–1996 versus U.S. 1992–19962 | OR [95% CI] NL 1992–1995 versus U.S. 1994–19972 | ||
|---|---|---|---|---|---|---|---|---|---|
| Number of patients in the study | EMC | 379 | 379 | 368 | 342 | 303 | NA | ||
| GHC | 2,119 | 2,119 | 1,976 | 1,867 | 1,561 | 1,361 | |||
| Mean HbA1c<7.0%1 | EMC | 53.4 | 40.7 | 55.4 | 50.5 | 43.1 | NA | OR: 2.69 | OR: 2.61 |
| GHC | 31.6 | 30.5 | 32.8 | 29.3 | 16.8 | 15.6 | [1.88–3.85] | [1.83–3.74] | |
| Mean HbA1c≤8.51 | EMC | 84.5 | 69.7 | 80.4 | 81.6 | 85.6 | NA | OR: 1.99 | OR: 1.76 |
| GHC | 66.3 | 68.1 | 72.8 | 70.2 | 56.7 | 57.3 | [1.37–2.87] | [1.20–2.57] | |
| Mean TC <5.2 mmol/l1 | EMC | 14.7 | 20.7 | 19.8 | 27.0 | 23.1 | NA | OR: 0.64 | OR: 0.48 |
| GHC | 22.8 | 28.2 | 29.3 | 29.5 | 40.4 | 48.6 | [0.48–0.86] | [0.35–0.65] | |
| Mean TC <6.5 mmol/l1 | EMC | 61.8 | 62.6 | 65.6 | 69.0 | 70.6 | NA | OR: 0.67 | OR: 0.47 |
| GHC | 70.3 | 72.0 | 74.4 | 75.5 | 81.4 | 84.2 | [0.50–0.90] | [0.34–0.65] | |
| Mean HDL cholesterol \gt;1.1 mmol/l1 | EMC | 33.3 | 51.0 | 48.3 | 44.7 | 40.7 | NA | OR: 1.20 | OR: 1.16 |
| GHC | 40.0 | 43.1 | 44.5 | 42.2 | 43.2 | 45.9 | [0.90–1.61] | [0.87–1.55] | |
| Mean HDL cholesterol ≥0.9 mmol/l1 | EMC | 88.9 | 87.5 | 87.9 | 80.7 | 80.7 | NA | OR: 2.09 | OR: 2.03 |
| GHC | 70.8 | 74.1 | 72.9 | 69.3 | 74.9 | 75.3 | [1.48–2.94] | [1.40–2.96] |
EMC: ExtraMural Clinic; GHC: Group Health Cooperative; NA: not available; TC: total cholesterol
1
percentage of patients who meet the criterion, per year
2
all analyses were controlled for age, gender, and mode of treatment; OR: odds ratio [95% CI]: 95% confidence intervals