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Table 4 Prediction of yearly patient visits to the primary diabetes care provider

From: The impact of accessibility and service quality on the frequency of patient visits to the primary diabetes care provider: results from a cross-sectional survey performed in six European countries

  Participants with up to two missing values (n = 1086) Patients with complete data (n = 829)
Parametera %-changeb %-contc Parametera %-changeb %-contc
Constant 0.540***    0.577***   
Control variables
 Finnish regiond − 0.218** −19.59 7.77 − 0.248** −21.94 8.64
 German regiond 0.361*** 43.48 0.330*** 39.08
 Greek regiond 0.541*** 71.77 0.545*** 72.46
 Dutch regiond 0.163** 17.70 0.163** 17.74
 Spanishd 0.411*** 50.83 0.515*** 67.30
 Male gender − 0.001 − 0.10 0.03 − 0.001 − 0.12 0.03
 Age in years 0.043 4.39 0.08 0.036 3.69 0.06
 High education − 0.059 −5.73 0.12 −0.051 −4.99 0.10
 Oral medicaments, no insuline 0.107 11.29 0.80 0.122 12.96 0.53
 Insuline 0.241*** 27.25 0.208** 23.16
 Heart problems 0.044 4.50 0.06 0.058 5.95 0.10
 Previous stroke 0.166** 18.06 0.34 0.109 11.47 0.12
 Extremities problems 0.332*** 39.38 2.37 0.330*** 39.05 2.36
 Sight problems −0.017 −1.69 0.01 − 0.023 −2.26 0.01
 Kidney problems −0.938** −60.86 0.53 −0.856** −57.53 0.58
Focal predictors
 Travel distance (km) −0.011*** −1.09 1.06 −0.010*** −0.99 0.97
 Travel time (minutes) 0.002 0.20 0.09 0.003 0.30 0.20
 In-practice waiting time (minutes) −0.001* − 0.10 0.21 − 0.002* − 0.16 0.30
 Quality of communicationf 0.127*** 13.54 3.71 0.121*** 12.85 3.26
  1. a Asterisks behind the values symbolize statistical significances for deviation from zero with * = p < 0.05, ** = p < 0.01, and *** = p < 0.001
  2. b Percentage of increase or, respectively, decrease of yearly visits when the respective predictor variable increases for one unit
  3. c Contribution of the respective predictor variable to the prediction of the complete model (one hundred times the difference between the CW-Indices for the complete model and the models without the respective predictor variable)
  4. d The reference category is England
  5. e The reference category is treatment only by diet
  6. f Coded from 1 for worst quality to 5 for best quality