Table 3

Factors explaining the monthly price differential between pensioners and non-pensioners dispensations.

Models

M1

M2

M3


Variables fixed part: estimated coefficients and significance

FC

9.74*

--

--


RC

-0.32

--

--


Price*FC

--

0.4920**

0.4273**


Intercept

--

-1.71

-1.44


Random effects

Withinclass correlation

77.2%

48.9%

61.6%#


Var(U0)

143.7376

36.5447

58.3749


Var(U3)

--

---

0.0147


Var(e)

42.3655

38.1651

37.7826


Deviance (-2 Log L)

9399.3

9230.4

9228.8


Multilevel models.

n = 1413. *p < 0.05; **p < 0.01; # Estimated for the monthly average (€12.0). FC if non-pensioners pay a copayment of 40%, RC if non-pensioners pay a reduced co-payment of 10% with a ceiling of €2.64.

González López-Valcárcel et al. BMC Health Services Research 2011 11:333   doi:10.1186/1472-6963-11-333

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