Table 1

Baseline characteristics (n=116 677)

ARB-only group
N(%) or mean±SD
CCB-only group
N(%) or mean±SD
MPC group
N(%) or mean±SD
SPC group
N(%) or mean±SD
P value
Total29 400 (25.2%)58 401 (50.0%)10 458 (9.0%)18 418 (15.8%)
 Male (47.3%, n=55 210)13 83425 499550710 370<0.01
 Female (52.7%, n=61 467)15 56632 90249518048
Age (years)59.3±12.562.4±12.261.1±12.456.9±12.3<0.01
 20–29 (0.6%)26320448148
 30–39 (4.2%)142616954171362
 40–49 (16.6%)5455800316534283
 50–59 (26.4%)825914 62126815212
 60–69 (27.7%)776117 17729444475
 70–79 (19.0%)499712 60421382412
 ≥80 (5.5%)12394097577526
Income<0.01
 Low (33.8%)939620 27736466063
 Middle (25.6%)730415 08126474868
 High (40.6%)12 70023 04341657487
Residence<0.01
 Metropolitan (46.1%)13 71126 48247718874
 City (44.1%)12 87825 94646707913
 Rural (9.8%)2811597310171631
Health insurance<0.01
 National health insurance (94.2%)27 67955 113966217 406
 Medical aid (5.8%)172132887961012
Average no. of diagnoses3.6±1.93.1±1.83.6±1.93.1±1.7<0.01
Average no. of medications4.1±2.23.9±2.04.9±2.13.7±2.0<0.01
Average cost of antihypertension drug (₩)651±185413±141982±316824±196<0.01
Prescription period (days)1,174±5751,477±6031,164±560972±412<0.01
Total days supplied (days)954±5621,218±6291,000±545855±407<0.01
Medication possession ratio (MPR)81.0±23.980.9±23.285.3±19.687.7±17.7<0.01
  • ARB, angiotensin II receptor blockers; CCB, calcium channel blockers; MPC, multiple-pill combination; SPC, single-pill combination.