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Table 6 Comparison of the number of reports for each factor before and after propensity score matching

From: Pharmacovigilance study of anti-infective-related acute kidney injury using the Japanese adverse drug event report database

  before propensity score matching  after propensity score matching  
≥ 2 drugs (n = 9,711) 1 drug (n = 29,938) p Standard mean difference ≥ 2 drugs (n = 6,044) 1 drug (n = 6,044) p Standard mean difference
Sex    < 0.0001* 0.0985    0.5788 0.0100
 Male 5683 (0.5861) 16037 (0.5373)    3561 (0.5892) 3591 (0.5941)   
 Female 4014 (0.4139) 13809 (0.4627)    2483 (0.4108) 2453 (0.4059)   
Age (year)    < 0.0001*     0.9991  
 < 10 669 (0.0693) 1671 (0.0563)    358 (0.0592) 363 (0.0601)   
 10 462 (0.0479) 1183 (0.0399)    285 (0.0472) 265 (0.0438)   
 20 477 (0.0494) 1586 (0.0534)    238 (0.0394) 225 (0.0372)   
 30 599 (0.0621) 2367 (0.0797)    344 (0.0569) 341 (0.0564)   
 40 723 (0.0749) 2186 (0.0736)    455 (0.0753) 448 (0.0741)   
 50 1256 (0.1302) 3506 (0.1181)    812 (0.1343) 819 (0.1355)   
 60 2095 (0.2171) 5787 (0.1949)    1382 (0.2287) 1399 (0.2315)   
 70 2195 (0.2275) 6903 (0.2325)    1476 (0.2442) 1485 (0.2457)   
 80 1047 (0.1085) 3821 (0.1287)    636 (0.1052) 643 (0.1064)   
 90 122 (0.0126) 669 (0.0225)    57 (0.0094) 55 (0.0091)   
 100 3 (0.0003) 7 (0.0002)    1 (0.0002) 1 (0.0002)   
Height (cm)    < 0.0001*     0.9998  
 < 10 0 (0.0000) 0 (0.0000)    0 (0.0000) 0 (0.0000)   
 10 0 (0.0000) 1 (0.0001)    0 (0.0000) 0 (0.0000)   
 20 3 (0.0005) 1 (0.0001)    2 (0.0003) 1 (0.0002)   
 30 31 (0.0050) 19 (0.0010)    15 (0.0025) 15 (0.0025)   
 40 22 (0.0035) 44 (0.0024)    20 (0.0033) 21 (0.0035)   
 50 21 (0.0034) 44 (0.0024)    20 (0.0033) 26 (0.0043)   
 60 29 (0.0047) 62 (0.0033)    28 (0.0046) 27 (0.0045)   
 70 52 (0.0084) 111 (0.0060)    48 (0.0079) 47 (0.0078)   
 80 46 (0.0074) 85 (0.0046)    43 (0.0071) 45 (0.0074)   
 90 53 (0.0085) 88 (0.0047)    49 (0.0081) 51 (0.0084)   
 100 42 (0.0068) 98 (0.0053)    40 (0.0066) 41 (0.0068)   
 110 42 (0.0068) 114 (0.0061)    42 (0.0069) 39 (0.0065)   
 120 58 (0.0093) 132 (0.0071)    58 (0.0096) 62 (0.0103)   
 130 102 (0.0164) 403 (0.0217)    99 (0.0164) 88 (0.0146)   
 140 747 (0.1202) 2449 (0.1319)    727 (0.1203) 723 (0.1196)   
 150 1889 (0.3038) 5975 (0.3218)    1847 (0.3056) 1824 (0.3018)   
 160 2108 (0.3391) 6222 (0.3351)    2058 (0.3405) 2084 (0.3448)   
 170 890 (0.1432) 2477 (0.1334)    868 (0.1436) 871 (0.1441)   
 180 81 (0.0130) 238 (0.0128)    79 (0.0131) 79 (0.0131)   
 190 1 (0.0002) 4 (0.0002)    1 (0.0002) 0 (0.0000)   
 ≥ 200 0 (0.0000) 0 (0.0000)    0 (0.0000) 0 (0.0000)   
Weight (kg)    0.0003*     0.9916  
 < 10 200 (0.0264) 369 (0.0177)    117 (0.0194) 120 (0.0199)   
 10 264 (0.0348) 620 (0.0298)    162 (0.0268) 165 (0.0273)   
 20 190 (0.0250) 470 (0.0226)    119 (0.0197) 113 (0.0187)   
 30 597 (0.0787) 1683 (0.0808)    437 (0.0723) 438 (0.0725)   
 40 1813 (0.2390) 4929 (0.2366)    1498 (0.2478) 1492 (0.2469)   
 50 2213 (0.2917) 6176 (0.2964)    1844 (0.3051) 1851 (0.3063)   
 60 1506 (0.1985) 4135 (0.1985)    1204 (0.1992) 1212 (0.2005)   
 70 559 (0.0737) 1672 (0.0802)    457 (0.0756) 465 (0.0769)   
 80 156 (0.0206) 503 (0.0241)    132 (0.0218) 131 (0.0217)   
 90 47 (0.0062) 157 (0.0075)    44 (0.0073) 32 (0.0053)   
 100 15 (0.0020) 62 (0.0030)    9 (0.0015) 10 (0.0017)   
 110 12 (0.0016) 19 (0.0009)    10 (0.0017) 6 (0.0010)   
 120 4 (0.0005) 7 (0.0003)    1 (0.0002) 0 (0.0000)   
 130 0 (0.0000) 3 (0.0001)    0 (0.0000) 0 (0.0000)   
 140 4 (0.0005) 3 (0.0001)    3 (0.0005) 2 (0.0003)   
 150 3 (0.0004) 11 (0.0005)    3 (0.0005) 3 (0.0005)   
 160 3 (0.0004) 7 (0.0003)    3 (0.0005) 4 (0.0007)   
 170 0 (0.0000) 5 (0.0002)    0 (0.0000) 0 (0.0000)   
 180 0 (0.0000) 2 (0.0001)    0 (0.0000) 0 (0.0000)   
 190 0 (0.0000) 0 (0.0000)    0 (0.0000) 0 (0.0000)   
 ≥ 200 1 (0.0001) 2 (0.0001)    1 (0.0002) 0 (0.0000)   
Sepsis    < 0.0001* 0.2190    0.7867 0.0048
 1 799 (0.0823) 953 (0.0318)    478 (0.0791) 470 (0.0778)   
 0 8912 (0.9177) 28985 (0.9682)    5566 (0.9209) 5574 (0.9222)   
  1. * P< 0.05