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Table 3 Estimated results for multiple group ITSA with two interventions for AURIs versus chronic diseases

From: Healthcare utilisation for elderly people at the onset of the COVID-19 pandemic in South Korea

Treated: AURI   Total Hypertension Diabetes Cancer
Intercept Coefficients 0.004 −0.002 0.051 0.200
95% CI −0.105,0.113 −0.085,0.082 −0.040,0.142 0.035,0.364
P-value 0.944 0.972 0.270 0.017
Trend before the 1st intervention (week 6) Coefficients 0.000 0.000 0.000 0.001
95% CI −0.001,0.002 −0.001,0.002 −0.001,0.002 −0.001,0.004
P-value 0.652 0.630 0.473 0.180
Level change after the 1st intervention (week 6) Coefficients −0.256 −0.075 −0.095 −0.314
95% CI −0.556,0.044 −0.172,0.022 −0.202,0.013 −0.471,-0.157
P-value 0.094 0.128 0.086 <0.0001
Trend change after 1st intervention (week 6) Coefficients 0.032 −0.004 −0.005 0.006
95% CI −0.040,0.103 −0.012,0.003 −0.013,0.004 −0.008,0.020
P-value 0.383 0.231 0.297 0.392
The difference in level before the 1st intervention (week6) Coefficients 0.023 0.028 −0.024 −0.173
95% CI −0.128,0.173 −0.105,0.161 −0.162,0.113 −0.368,0.021
P-value 0.768 0.680 0.726 0.080
The difference in trend before the 1st intervention (week6) Coefficients 0.000 0.000 0.000 −0.001
95% CI −0.002,0.003 −0.002,0.002 −0.002,0.002 −0.003,0.002
P-value 0.832 0.758 0.905 0.540
The difference in level after the 1st intervention (week6) Coefficients 0.163 −0.018 0.001 0.221
95% CI −0.162,0.487 −0.176,0.140 −0.164,0.167 0.020,0.422
P-value 0.325 0.822 0.988 0.031
The difference in trend after the 1st intervention (week6) Coefficients −0.090 −0.053 −0.053 −0.064
95% CI −0.163,-0.016 −0.071,-0.036 −0.071,-0.036 −0.085,-0.043
P-value 0.017 <0.0001 <0.0001 <0.0001
Level change after the 2nd intervention (week 17) Coefficients −0.066 0.053 0.069 0.070
95% CI −0.601,0.470 −0.020,0.126 −0.012,0.149 −0.045,0.185
P-value 0.810 0.157 0.096 0.231
Trend change after the 2nd intervention (week 17) Coefficients −0.029 0.002 0.002 −0.011
95% CI −0.107,0.049 −0.005,0.010 −0.007,0.011 −0.024,0.003
P-value 0.468 0.530 0.638 0.122
The difference in level after the 2nd intervention (week 17) Coefficients 0.144 0.026 0.010 0.009
95% CI −0.400,0.688 −0.097,0.148 −0.118,0.137 −0.143,0.160
P-value 0.603 0.682 0.879 0.911
The difference in trend after the 2nd intervention (week 17) Coefficients 0.109 0.077 0.078 0.091
95% CI 0.029,0.188 0.060,0.095 0.060,0.095 0.070,0.111
P-value 0.008 <0.0001 <0.0001 <0.0001
  1. Note: This table presents the results of multiple-group interrupted time series analyses between January – July from 2017–2020. The treated group is AURIs, while control groups include total ambulatory services, chronic diseases, and cancer (only including patients taking ambulatory services)