Table 8.
Quality assessment scores of the studies involved in the meta-analysis.
| The first author, year | Selection | Comparability | Exposure | Total points |
|---|---|---|---|---|
| ADULTS | ||||
| Vgontzas, 1997 (26) | *** | – | *** | 6 |
| Huiguo, 2000 (27) | *** | ** | *** | 8 |
| Roytblat, 2000 (28) | *** | * | *** | 7 |
| Teramoto, 2003 (29) | ** | – | *** | 5 |
| Yokoe, 2003 (30) | *** | ** | *** | 8 |
| Ciftci, 2004 (12) | *** | ** | *** | 8 |
| Imagawa, 2004 (31) | *** | * | *** | 7 |
| Ryan, 2006 (32) | *** | ** | *** | 8 |
| de la Peña Bravo, 2007 (34) | *** | ** | *** | 8 |
| Harsch, 2007 (35) | *** | ** | *** | 8 |
| Arias, 2008 (36) | *** | ** | *** | 8 |
| Constantinidis, 2008 (37) | *** | * | *** | 7 |
| Li, 2008 (40) | **** | ** | *** | 9 |
| Takahashi, 2008 (41) | *** | ** | *** | 8 |
| Tomiyama, 2008 (42) | *** | ** | *** | 8 |
| Vgontzas, 2008 (43) | *** | ** | *** | 8 |
| Yamamoto, 2008 (44) | *** | ** | *** | 8 |
| Carneiro, 2009 (45) | *** | ** | *** | 8 |
| Li, 2009 (46) | *** | ** | *** | 8 |
| Thomopoulos, 2009 (47) | *** | ** | *** | 8 |
| Sahlman, 2010 (48) | *** | ** | *** | 8 |
| Steiropoulos, 2010 (49) | *** | ** | *** | 8 |
| Ye, 2010 (50) | **** | ** | *** | 9 |
| Liu, 2011(51) | *** | ** | *** | 8 |
| Fornadi, 2012 (52) | *** | ** | *** | 8 |
| Medeiros, 2012 (53) | *** | ** | *** | 8 |
| Qian, 2012 (54) | *** | ** | *** | 8 |
| Ye, 2012 (55) | *** | ** | *** | 8 |
| Hargens, 2013 (56) | *** | ** | *** | 8 |
| Kurt, 2013 (57) | *** | * | *** | 7 |
| Yang, 2013 (58) | *** | ** | *** | 8 |
| Ciccone, 2014 (59) | *** | ** | *** | 8 |
| Kritikou, 2014 (61) | *** | ** | *** | 8 |
| Unuvar Dogan, 2014 (62) | *** | ** | *** | 8 |
| De, 2015 (63) | *** | ** | *** | 8 |
| Gaines, 2015 (64) | *** | ** | *** | 8 |
| Hui, 2015 (65) | ** | - | *** | 5 |
| Ulasli, 2015 (67) | *** | ** | *** | 8 |
| Thunstrom, 2015 (66) | **** | ** | *** | 9 |
| Dogan, 2016 (68) | *** | ** | *** | 8 |
| Nizam, 2016 (70) | *** | ** | *** | 8 |
| Vicente, 2016 (71) | *** | ** | *** | 8 |
| Hirotsu, 2017 (72) | **** | ** | *** | 9 |
| Kong, 2017 (73) | *** | ** | *** | 8 |
| Thorn, 2017 (74) | *** | ** | *** | 8 |
| Weingarten, 2017 (76) | *** | ** | *** | 8 |
| Zhang, 2017 (77) | *** | * | *** | 7 |
| Al-Terki, 2018 (78) | *** | ** | *** | 8 |
| Bhatt, 2018 (79) | *** | ** | *** | 8 |
| Bozic, 2018 (80) | *** | ** | *** | 8 |
| Kong, 2018 (81) | *** | ** | *** | 8 |
| Lu, 2018 (82) | *** | ** | *** | 8 |
| Motamedi, 2018 (83) | **** | ** | *** | 9 |
| Sundbom, 2018 (84) | **** | ** | *** | 9 |
| Bhatt, 2019 (85) | *** | * | *** | 7 |
| Tang, 2019 (86) | *** | ** | *** | 8 |
| Galati, 2020 (87) | **** | ** | *** | 8 |
| CHILDREN | ||||
| Tam, 2006 (33) | **** | ** | *** | 9 |
| Gozal, 2008 (38) | **** | ** | *** | 9 |
| Li, 2008 (39) | *** | * | *** | 7 |
| Gileles-Hillel, 2014 (60) | *** | ** | *** | 8 |
| Huang, 2016 (69) | *** | * | *** | 7 |
| Van Eyck, 2017 (75) | *** | * | *** | 7 |
Each asterisk denotes 1 point.