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Table 1 Background information, health care contacts (appointments and phone calls) and HbA1c measurements

From: The effect of the integration of health services on health care usage among patients with type 2 diabetes in North Karelia, Finland

  Annual range 2014 2015 2016 2017 2018 P-value
T2D cohort
 N of T2D patients   11,781 11,967 12,590 12,800 12,969  
Sex, % of women   46.5 46.0 45.8 45.6 45.6 < 0.001a
Age, mean 18–117 68.3 68.6 68.7 69.0 69.2 < 0.001b
Health care appointments and phone calls
N of appointments and phone calls   33,909 36,961 37,367 41,610 37,290  
Proportion of users, %   73.3 74.9 73.5 75.3 72.3 < 0.001a
N of contacts per person, mean 0-169 2.88 3.09 2.97 3.25 2.88 < 0.001b
N of appointments per person, mean 0-168 2.54 2.68 2.57 2.75 2.33 < 0.001b
N of phone calls per person, mean 0–29 0.34 0.41 0.40 0.50 0.55 < 0.001c
Proportion of phone calls of all contacts, %   11.9 13.2 13.5 15.3 19.1 < 0.001a
Primary/Specialized care
Primary care
N of appointments and phone calls   31,224 33,923 34,440 38,296 33,538  
Proportion of users, %   71.6 73.1 71.9 73.7 70.5 < 0.001a
N of contacts per person, mean 0-167 2.65 2.83 2.74 2.99 2.59 < 0.001b
N of appointments per person, mean   2.31 2.43 2.33 2.49 2.04 < 0.001b
N of phone calls per person, mean   0.34 0.41 0.40 0.50 0.55 < 0.001c
Specialised care
N of appointments and phone calls+   2685 3038 2927 3314 3752  
Proportion of users, %   9.4 9.5 9.1 9.5 9.6 0.450a
N of contacts per person, mean 0-160 0.23 0.25 0.23 0.26 0.29 < 0.001c
Proportion of specialized care contacts of all contacts, %   7.9 8.2 7.8 8.0 10.1 < 0.001a
HbA1c measurements
N of measurements   19,798 19,760 19,423 19,178 17,768  
Proportion of measured, %   76.2 77.0 75.8 76.2 74.9 < 0.001a
N of measurements per person, mean 0–16 1.41 1.42 1.35 1.36 1.34 < 0.001d
HbA1c* < 7%, %   69.7 68.5 69.7 67.3 68.0 < 0.001a
Nof contacts by HbA1c*, mean
HbA1c not measured   1.14 1.20 1.12 1.21 1.09 0.002b
HbA1c < 7%   2.94 3.12 3.09 3.32 2.92 < 0.001b
HbA1c > = 7%   4.53 4.83 4.64 5.06 4.65 < 0.001b
  1. * The year’s last HbA1c value
  2. + The number of phone calls was 11 in specialised care
  3. aLogistic model, bLinear model, cFriedman test, dPoisson model