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Table 2 Multilevel logistic regression analyses with dependent variables referrals to internists, ophthalmologists and cardiologists and as independent variable time and presence of primary care nurse for newly diagnosed and known diabetes patients in 2004 to 2006§.

From: Primary care nurses: effects on secondary care referrals for diabetes

  Newly diagnosed diabetes patients Known diabetes patients
  Model 1 Model 2# Model 3# ‡ Model 1 Model 2# Model 3# ‡
  OR 95% CI OR 95% CI OR 95% CI OR 95% CI OR 95% CI OR 95% CI
Internist             
   Difference 2004-2006 0.44 0.22-0.88 1 0.42 0.21-0.85 1 0.12 0.02-1.00 1 0.85 0.65-1.10 0.87 0.66-1.14 1.31 0.76-2.28
   Primary care nurse    1.24 0.58-2.67 0.87 0.35-2.12    0.85 0.60-1.21 1.11 0.71-1.75
   PCN*Year*      4.52 0.48-42.32      0.59 0.31-1.11 2
Ophthalmologist             
   Difference 2004-2006 1.14 0.70-1.87 1.21 0.71-2.07 1.65 0.49-5.59 0.93 0.73-1.17 0.98 0.76-1.25 1.41 0.71-2.81
   Primary care nurse    0.79 0.36-1.74 0.93 0.35-2.43    0.79 0.49-1.27 0.91 0.53-1.55
   PCN*Year*      0.67 0.17-2.74      0.65 0.31-1.38
Cardiologist             
   Difference 2004-2006 1.45 0.58-3.59 1.99 0.74-5.31 2.59 0.67-10.04 1.00 0.70-1.41 1.00 0.70-1.42 1.08 0.50-2.34
   Primary care nurse    0.30 0.12-0.78 1 0.43 0.09-1.99    0.87 0.55-1.38 0.91 0.49-1.71
   PCN*Year*      0.58 0.09-3.88      0.91 0.37-2.19
  1. §For both newly diagnosed and known diabetes patient separate analyses were performed for referrals to internists, ophthalmologists and cardiologist. This table shows the results of 18 analyses.
  2. #adjusted for age, gender, distance to hospital, related and unrelated comorbidity
  3. in addition primary care nurse included as variable in the analysis
  4. *interaction term presence primary care nurse and difference 2004-2006
  5. 1significant p < 0.05
  6. 2significant p < 0.1