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Table 1 Variable definitions and descriptive statistics on the patient level1

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

Variable Definition Sample 1 (N = 313,659) Sample 2 (N = 30,212)
   Median Mean St.dev Median Mean St.dev
DT1_share The share of a GP’s patients with diabetes type 1 0.005 0.007 0.006 0.005 0.006 0.005
DT2_share The share of a GP’s patients with diabetes type 2 0.042 0.046 0.027 0.036 0.040 0.021
Arth_share The share of a GP’s patients with arthritis 0.014 0.016 0.010 0.013 0.015 0.009
Asthm_share The share of a GP’s patients with asthma 0.020 0.023 0.015 0.018 0.020 0.013
Depr_share The share of a GP’s patients with depression 0.107 0.112 0.042 0.094 0.100 0.038
Schi_share The share of a GP’s patients with schizophrenia 0.004 0.005 0.003 0.004 0.005 0.003
Epil_share The share of a GP’s patients with epilepsy 0.008 0.009 0.004 0.008 0.008 0.004
ListLength The number of patients on a GP’s list 1423 1444.0 367.8 1439 1453.4 367.8
Ln_ListLength The natural logarithm of Listlength 7.261 7.240 0.277 7.272 7.248 0.270
GP_Age The GP’s age 52 50.358 9.120 51 49.744 8.989
GP_Sex =1 if the GP is male, =0 otherwise 1 0.706 0.455 1 0.673 0.469
GP_age · GP_Sex The product of GP_Age and GP_Sex 48 36.473 24.718 45 34.266 25.016
GP_Specialist =1 if the GP has a specialist degree in general medicine; =0 otherwise 1 0.707 0.455 1 0.702 0.457
Pat_Sex =1 if the patient is male; =0 otherwise 0 0.426 0.494 0 0.494 0.500
Pat_BirthYear The patient’s year of birth 1959 1958.6 19.1 1970 1961.5 13.5
Pat_Comorb Sample 1: No. of chronic diseases minus one. Sample 2: Not defined 0 0.148 0.405 -   
Pat_Visits The patient’s number of visits to primary care 3 4.662 5.268 1 2.227 3.369
Pat_Visits_win Winsorized Pat_Visits at 99th percentile (max = 23) 3 4.570 4.626 1 2.205 3.107
Pat_Visits_dum =1 if Pat_Visit >23, =0 otherwise 0 0.10 0.98 0 0.002 0.047
  1. 1Municipalities over 50 000. First half of 2009