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Table 5 Logistic regression for patients’ voluntary disenrollment from GPs, separate for patient groups.4Estimated parameters (standard errors)

From: Disenrollment from general practitioners among chronic patients: a register-based longitudinal study of Norwegian claims data

  Arthritis Asthma Depression Diabetes type 2 Diabetes type 1 Epilepsy Schizophrenia Others
Arth_share −15.032 −10.550 −16.792 −9.506 −16.905 −16.495 −20.113 −15.310
(1.611) (1.597) (0.815) (1.194) (3.116) (2.836) (3.925) (2.185)
Asthm_share −4.381 −10.406 −2.117 1.883 −1.624 −0.188 −3.895 0.093
(1.598) (1.309) (0.636) (0.934) (2.494) (2.262) (2.922) (1.799)
Depr_share −1.915 −2.343 −5.377 −2.781 −0.484 −2.029 −1.095 −0.220
(0.445) (0.392) (0.165) (0.278) (0.648) (0.590) (0.752) (0.457)
DT2_share −0.875 1.260 −0.534 −4.117 −0.499 −0.886 2.397 0.112
(0.855) (0.738) (0.349) (0.459) (1.347) (1.207) (1.524) (0.986)
DT1_share 16.725 11.661 15.525 7.841 −20.177 15.491 10.100 15.962
(3.049) (2.576) (1.147) (1.691) (4.069) (4.042) (5.592) (3.473)
Epil_share 9.578 11.917 4.069 4.048 −9.185 −13.955 −1.462 −0.165
(4.637) (3.910) (1.695) (2.815) (6.681) (5.882) (7.709) (4.754)
Schi_share 23.551 28.298 37.453 39.029 21.821 39.502 1.307 29.586
(5.265) (4.248) (1.810) (3.082) (7.191) (6.259) (7.663) (5.136)
Ln_ListLength −0.702 −0.631 −0.405 −0.658 −0.346 −0.489 −0.205 −0.623
(0.053) (0.047) (0.019) (0.033) (0.076) (0.069) (0.090) (0.052)
GP_Age 0.032 0.029 0.033 0.035 0.032 0.033 0.033 0.033
(0.003) (0.003) (0.001) (0.002) (0.005) (0.004) (0.006) (0.003)
GP_Sex −0.367 −0.512 −0.202 −0.234 −0.138 −0.108 −0.390 −0.317
(0.189) (0.166) (0.065) (0.118) (0.265) (0.235) (0.306) (0.175)
GP Age aSex 0.010 0.013 0.006 0.007 0.009 0.004 0.010 0.008
(0.004) (0.003) (0.001) (0.002) (0.005) (0.005) (0.006) (0.004)
GP_Specialist −1.148 −1.271 −1.145 −1.288 −1.119 −1.236 −1.189 −1.242
(0.035) (0.030) (0.012) (0.021) (0.050) (0.044) (0.056) (0.033)
Pat_Sex −0.188 −0.090 −0.100 −0.082 −0.133 0.015 −0.163 0.040
(0.035) (0.028) (0.012) (0.020) (0.047) (0.041) (0.055) (0.032)
Pat_BirthYear a 0.007 0.007 0.012 0.007 0.003 0.007 0.012 0.195
(0.001) (0.001) (0.000) (0.001) (0.001) (0.001) (0.002) (0.036)
Pat_Comorb 0.135 0.103 0.096 0.162 0.169 0.193 0.214  
(0.027) (0.022) (0.013) (0.016) (0.034) (0.035) (0.038)  
Pat_Visits_win 0.042 0.046 0.049 0.041 0.035 0.049 0.046 0.057
(0.003) (0.003) (0.001) (0.002) (0.005) (0.004) (0.005) (0.004)
Pat_Visits_dum 0.046 −0.208 −0.270 −0.327 −0.141 −0.157 −0.212 −1.019
(0.116) (0.087) (0.046) (0.083) (0.158) (0.134) (0.143) (0.333)
Cons −12.977 −13.367 −25.141 −13.052 −7.795 −14.111 −26.068 −0.306
(1.863) (1.736) (0.738) (1.283) (2.508) (2.090) (3.519) (0.402)
Sigma_u 0.718 0.784 0.773 0.747 0.755 0.809 0.922 0.662
(0.040) (0.032) (0.013) (0.024) (0.051) (0.043) (0.049) (0.042)
No. obs 130,690 175,010 890,215 357,153 53,206 73,419 39,535 146,906
No. patients 27,157 37,110 186,415 74,473 11,292 15,403 8,316 30,212
  1. 4Dependent variable: ‘SwitchOut’. Only patients living in cities with more than 50,000 inhabitants were included. The seven left columns are from sample 1, the far right column is from sample 2. aFor ‘Others’, ‘Pat_BirthYear’ was replaced with a dummy variable equal to 0 for patients born in 1940 and equal to 1 for patients born in 1970. Each patient was observed up to five times. Sigma_u denotes the estimated standard deviation of the random patient-specific constant terms. Stata 13, the xtlogit procedure, was used in the estimations. Estimates with two-sided p-values < 1% are in boldface