Table 1

Patient characteristics, person years and number of prescription by age and calendar year

Korea (AUSOM)Hong Kong (CDARS)*Japan (JMDC)Taiwan (NHIRD)Australia (PBS)
(n=220 076)(n=18 634)(n=913 006)(n=235 214)(n=187 594)
Total number of person years259 75071 5023 006 825630 051774 420
Gender (number of children/number of person years (%))
 Female98 921/115 868 (44.61)8 389/31 433 (43.96)433 918/1 459 304 (48.53)113 179/301 824 (47.90)87 129/360 099 (46.50)
 Male121 155/143 882 (55.39)9 656/36 875 (51.57)479 088/1 547 521 (51.47)122 035/328 226 (52.10)100 465/414 322 (53.50)
Age (number of children/number of person years (%))
 <2 years69 121/32 909 (12.7)5 758/7937 (11.1)175 070/304 672 (10.1)31 659/42 445 (6.7)62 021/86 181 (11.1)
 2–11 years122 177/152 352 (58.7)11 120/34 767 (48.6)448 008/1 613 909 (53.7)133 727/305 543 (48.5)138 714/462 755 (59.8)
 12–18 years60 230/74 489 (28.7)9 458/28 798 (40.3)348 343/1 088 244 (36.2)131 969/282 063 (44.8)86 051/225 484 (29.1)
Calendar year (number of children/number of person years (%))
 2009109 462/72 472 (27.9)14 797/14 148 (19.8)519 973/311 734 (10.4)228 059/216 660 (34.4)165 735/149 157 (19.3)
 2010101 055/66 090 (25.4)14 843/14 147 (19.8)573 486/644 681 (21.4)221 661/211 666 (33.6)168 702/152 689 (19.7)
 201193 416/57 515 (22.1)15 001/14 274 (20.0)590 384/665 955 (22.2)208 643/201 725 (32.0)171 233/155 597 (20.1)
 201283 504/44 161 (17.1)15 215/14 459 (20.2)594 331/686 775 (22.8)172 842/158 117 (20.4)
 201351 575/19 512 (7.5)15 182/14 475 (20.2)589 192/697 680 (23.2)173 286/158 861 (20.5)
Number of drugs dispensed (inpatient)
 Total3 126 56748 1665 311 981361 985
 <2 years, n (%)1 354 036 (43.3)17 816 (37.0)2 523 959 (47.5)92 518 (25.6)
 2–11 years, n (%)1 158 851 (37.1)12 852 (26.7)1 980 742 (37.3)156 401 (43.2)
 12–18 years, n (%)613 680 (19.6)17 498 (36.3)807 280 (15.2)113 066 (31.2)
Number of drugs dispensed (ambulatory)
 Total19 511 71023 520 3561 620 805
 <2 years, n (%)1 346 903 (6.9)2 880 951 (12.2)187 486 (11.5)
 2–11 years, n (%)14 036 081 (71.9)14 984 130 (63.7)950 984 (58.7)
 12–18 years, n (%)4 128 726 (21.2)5 655 275 (24.0)482 335 (29.8)
  • *For 589 children in CDARS gender was not recorded at admission.

  • AUSOM, the South Korean Ajou University School of Medicine; CDARS, the Hong Kong Clinical Data Analysis and Reporting System; JMDC, the Japan Medical Data Center ; NHIRD, Taiwan’s National Health Insurance Research Database; PBS, the Australian Pharmaceutical Benefits Scheme .