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. 2018 May 5;6(1):e000512. doi: 10.1136/bmjdrc-2018-000512

Table 3.

Multiple linear regression model predicting 1-year glycated hemoglobin A1c (HbA1c) change as a function of medication possession ratio (MPR), stratified by oral antihyperglycemic agent (OHA) therapy cohort

Multivariate model
Value SE t-value p-value
OHA monotherapy
Change in HbA1c (%)
 MPR (%) −0.892 0.076 −11.680 0.000
 Constant −0.002 0.073 −0.030 0.974
MPR (%)
 Age (years) 0.002 0.000 10.110 0.000
 Change in BMI (kg/m2) −0.003 0.001 −2.760 0.006
 Baseline HbA1c (%) −0.002 0.002 −1.400 0.162
 Change in total cholesterol −0.016 0.002 −7.270 0.000
 Constant 0.827 0.019 42.780 0.000
OHA dual therapy
Change in HbA1c (%)
 MPR (%) −0.859 0.155 −5.550 0.000
 Constant −0.133 0.143 −0.930 0.353
MPR (%)
 Age (years) 0.002 0.000 6.320 0.000
 Change in BMI (kg/m2) 0.004 0.001 2.420 0.015
 Baseline HbA1c (%) −0.007 0.002 −3.400 0.001
 Change in total cholesterol −0.012 0.003 −4.230 0.000
 Constant 0.874 0.023 37.300 0.000
OHA triple therapy
Change in HbA1c (%)
 MPR (%) −2.058 0.348 −5.920 0.000
 Constant 0.840 0.319 2.630 0.009
MPR (%)
 Age (years) 0.001 0.001 2.170 0.031
 Change in BMI (kg/m2) −0.001 0.004 −0.220 0.823
 Baseline HbA1c (%) −0.013 0.005 −2.610 0.009
 Change in total cholesterol −0.016 0.008 −1.930 0.054
 Constant 0.941 0.063 15.050 0.000

BMI, body mass index.