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Table 5 Estimates from Multivariate Regression Models 1–3

From: Factors influencing the variation in GMS prescribing expenditure in Ireland

Variables

Model 1

Model 2

Model 3

 

β

C1 95 %

t-stat

β

C1 95 %

t-stat

β

CI 95 %

t-stat

Constant

3.339

  

3.288

  

3.324

  

Sex (F)

0.107

(0.103;0.112)

a47.84

0.018

(0.015;0.022)

a10.07

0.025

(0.021;0.029)

a13.66

Age

0.044

(0.044;0.045)

a1043.44

0.015

(0.015;0.015)

a306.74

   

Dublin ML

0.026

(0.019;0.032)

a7.76

−0.003

(−0.008;0.002)

a-1.16

−0.003

(−0.009;0.002)

−1.20

West

−0.017

(−0.024;-0.011)

a-5.16

0.008

(0.003;0.014)

a3.07

0.009

(0.003;0.014)

a3.21

South

0.056

(0.050;0.063)

a17.08

0.038

(0.033;0.043)

a14.21

0.037

(0.032;0.043)

a14.00

Alimentary

   

0.911

(0.907;0.915)

a440.64

0.903

(0.899;0.907)

a436.51

Cardiovascular

   

1.229

(1.224;1.234)

a478.42

1.193

(1.188;1.198)

a452.28

Nervous

   

0.927

(0.923;0.931)

a456.61

0.947

(0.943;0.951)

a454.63

<5

      

0.117

(0.106;0.128)

a21.57

5–11

      

0.103

(0.092;0.113)

a19.23

16–24

      

0.237

(0.227;0.247)

a45.55

25–34

      

0.370

(0.360;0.381)

a72.09

35–44

      

0.475

(0.465;0.485)

a92.06

45–54

      

0.706

(0.696;0.717)

a131.29

55–64

      

0.957

(0.946;0.968)

a172.64

65–69

      

1.071

(1.059;1.083)

a173.49

70–74

      

1.126

(1.114;1.137)

a189.07

>75

      

1.195

(1.184;1.206)

a215.44

Adjusted R2

 

0.402

 

0.604

  

0.605

  
  1. aStatistically significant at 5 % level
  2. The dependent variable was the logarithim of annual total GMS cost (€) per claimant
  3. Baseline - Males, age category 12–15, Dublin NE and ATC ‘R’. (least cost variables)