TABLE 2.
Main characteristics and NOS scores of the studies included
| Author-year | Country | Ethnicity | No. of cases | F/M | Age (y) | HWE | Outcome | RFC1/SLC19A1 | SLCO1B1 | ABCB1 | FPGS | MTHFR | MTHFR | TYMS/MS | ATIC | NOS score |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 80 A>G rs1051266 | 521 T>C rs4149056 | 3435 C>T rs1045642 | 2752 G > A, rs1544105; 1994 A>G, rs10106 | 677 C>T rs1801133 | 1298 A>C rs1801131 | 2R>3R rs34743033 | 347 C>G rs2372536 | |||||||||
| Esmaili M A-2020 | Iran | Caucasian | 74 | 28/46 | Median 5, pediatric | Yes | Tox a , Prog b | AG↗ Tox | T↘ Prog | TT↘ Prog | AC↘ Tox | 7 | ||||
| Kotur N-2020 | Serbia | Caucasian | 148 | 54/94 | Median 5.5 (0.9–17.6) | Yes | Tox | G↘ Tox | NS c | NS | NS | 7 | ||||
| Liu S G-2017 | China | Asian | 322 | NR | Median 4 (1.0–15.0) | Yes | Tox, Prog | NS | CC↘ Prog | NS | 7 | |||||
| Den Hoed M-2014 | Netherlands | Caucasian | 134 | 64/70 | Median 5.3 (1.4–18.1) | Yes | Tox | NS | NS | NS | NS | 8 | ||||
| Suthandiram S-2014 | Malaysia | Asian | 71 | 35/36 | 36.6 ± 14.2 | Yes | Tox | G↘ Tox | T↗ Tox | TT↗ Tox | NS | 8 | ||||
| Yanagimachi M-2013 | Japan | Asian | 51 | 25/26 | Median 5.9 (1–15) | Yes | Tox | NS | NS | NS | 6 | |||||
| Chiusolo P-2012 | Italy | Caucasian | 54 | 25/29 | Median 52 (15–78) | Yes | Tox, Prog | GG↘ Prog | NS | C↘ Tox | 8 | |||||
| Faganel K B-2011 | Slovenia | Caucasian | 64 | 38/26 | Median 5 (1.6–16.8) | Yes | Tox | NS | NS | T↗ Tox | NS | 3R↘ Tox | 8 | |||
| Faganel K B-2010 | Slovenia | Caucasian | 60 | 37/23 | Pediatric | Yes | Tox, Prog | NS | 8 | |||||||
| Ashton L J-2009 | Australia | Caucasian | 170 | NR | Pediatric | Yes | Prog | GG↘ Prog | NS | 8 | ||||||
| Imanishi H-2007 | Japan | Asian | 26 | 10/16 | 6.7 ± 4.7 | Yes | Tox | NS | NS | 8 | ||||||
| Shimasaki N-2006 | Japan | Asian | 15 | 9/6 | Median 6 (1–14) | Yes | Tox | G↗ Tox | NS | 8 | ||||||
| Kishi S-2003 | America | Caucasian | 53 | 23/30 | Median 6 (0–18) | Yes | Tox | NS | NS | 7 | ||||||
| Laverdiere C-2002 | Canada | Caucasian | 204 | 92/112 | Pediatric | Yes | Tox, Prog | GG↘ Tox, GG↗ Prog | 7 | |||||||
| Yang L-2017 | China | Asian | 105 | 33/72 | 42.5 ± 17.9 | Yes | Tox | C↗ Tox | 1994 A>G NS | 8 | ||||||
| Avivi I-2014 | Israel | Caucasian | 69 | 20/49 | Median 56 (25–83) | Yes | Tox | C↘ Tox | NS | NS | NS | 9 | ||||
| Fukushima H-2013 | Japan | Asian | 103 | 41/62 | Median 7.43 (0.2–19.2) | Yes | Tox, Prog | NS | T↗ Tox | C↗ Prog, C↗ Tox | 8 | |||||
| Tsujimoto S-2016 | Japan | Asian | 56 | 27/29 | Median 5 (0–15) | Yes | Tox | NS | NS | NS | 8 | |||||
| Ma C X-2015 | China | Asian | 178 | 72/106 | Median 30 (18–59) | Yes | Tox, Prog | T↗ Tox | 8 | |||||||
| Chae H-2020 | Korea | Asian | 117 | 35/82 | Median 9 (5–13) | Yes | Tox | TT↗Tox | NS | 8 | ||||||
| Chang X-2021 | China | Asian | 32 | 11/21 | ≥14 | Yes | Tox | TT↗Tox | 8 | |||||||
| Giletti-2017 | Uruguayan | Caucasian | 41 | 12/29 | 36 ± 13.9 | Yes | Tox | NS | 7 | |||||||
| Yazicioglu B-2017 | Turkey | Caucasian | 106 | 39/67 | Median 5 (1–17) | Yes | Tox, Prog | NS | NS | NS | 7 | |||||
| Choi Y J-2016 | Korea | Asian | 111 | 53/58 | Median 60 (17–86) | Yes | Tox | T↗Tox | 8 | |||||||
| Erculj N-2014 | Slovenia | Caucasian | 29 | 4/25 | Median 11 (1–8) | Yes | Tox | T↗Tox | NS | NS | 8 | |||||
| Erculj, N-2012 | Slovenia | Caucasian | 167 | 87/80 | Median 4.7 (0.3–18) | Yes | Tox, Prog | NS | NS | NS | 8 | |||||
| Haase R-2012 | Germany | Caucasian | 34 | 17/17 | 7.1 ± 4.8 | Yes | Tox | NS | NS | 7 | ||||||
| D'Angelo V-2011 | Italy | Caucasian | 151 | 48/103 | Pediatric | Yes | Prog | TT↘Prog | NS | 7 | ||||||
| Liu S G-2011 | China | Asian | 181 | 66/115 | 5.7 ± 3.6 | Yes | Tox | NS | C↘Tox | 8 | ||||||
| Ruiz-Arg elles G J-2007 | Mexico | Caucasian | 28 | 7/21 | Mean 16.5 (0–40) | Yes | Tox | NS | 6 | |||||||
| Seidemann-2006 | Austria, Germany, Switzerland | Caucasian | 484 | 144/340 | Pediatric | Yes | Prog | NS | 7 | |||||||
| Huang Z-2016 | China | Asian | 57 | 26/31 | 5.9 ± 4.3 | Yes | Prog | 2752 AA↗Prog | 9 | |||||||
| Oosterom N-2017 | Netherlands | Caucasian | 108 | 49/59 | Median 5.7 (1–18) | Yes | Tox | NS | 7 | |||||||
| Radkte S-2013 | Germany | Caucasian | 499 | 204/295 | 6.4 ± 4.0 | Yes | Tox, Prog | CC↘Prog | 3R↘Tox | 8 |
Note:↗: increase; ↘: reduce.
Abbreviation:
Tox: toxicity.
Prog: prognosis.
NS: no significant association between the genetic polymorphisms and the outcomes.