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Table 6 Self-referral rates to specialist from different PHC practice models adjusted for patient's age, gender, patient's place of residence (urban/rural) and co-morbidity level.

From: Differences in referral rates to specialised health care from four primary health care models in Klaipeda, Lithuania

Included variables

Referrals/1000 patient years

Model A

Model B

Model C

Model D

 

N

IRR

95%CI

IRR

95%CI

IRR

95%CI

IRR

95%CI

Public practices

174

1.0

 

1.0

 

1.0

 

1.0

 

Private practices

335

1.92***

1.40–2.63

1.92***

1.39–2.65

1.35

0.94–1.93

1.20

0.82–1.75

Public polyclinics

309

1.77***

1.25–2.52

1.75**

1.23–2.50

1.23

0.83–1.82

1.27

0.82–1.95

Private polyclinics

346

2.08***

1.52–2.86

2.10***

1.52–2.90

1.43

0.99–2.07

1.19

0.81–1.75

  1. * p < .05 ** p < .01 *** p < .001
  2. IRR – incidence rate ratio, CI – confidence interval, RUB – resource utilisation band, PHC – primary health care model
  3. Model A: unadjusted
  4. Model B: adjusted for age and gender
  5. Model C: adjusted for age and gender and urban/rural
  6. Model D: adjusted for age and gender, urban/rural and level of co-morbidity(RUB)
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