Table 1.
Listing of the 28 publications that met the inclusion criteria detailing age, male-to-female distribution, and groups within the two categories of PSN<80% and PSN≥80% by year of publication
| Category
|
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|---|---|---|---|---|---|---|---|---|---|
| Author/publication year | Ref no. | Country | Blinded | Age median (range) | M:F | PSN < 80% groups | N | PSN > 80% groups | N |
| Aoki 2001 | 67 | Japan | N | 64 (32-84) | 68:59 | R1 < 50% | 24 | R1 > 50%-90% | 30 |
| R1 > 90% | 73 | ||||||||
| Kodama 2001 | 66 | Japan | N | 60 (34-78) | 55:49 | R1 < 50% | 52 | R1 > 50% | 52 |
| Asamura 2003 | 54 | Japan | N | 61 (43-77) | 23:25 | R1 ≤ 50% | 9 | R1 > 50% | 20 |
| Ohde 2003 | 55 | Japan | Y | NA | NA | R1 < 50% | 23 | ||
| Takashima 2003 | 68 | Japan | N | 66 (40-82) | 20:32 | R1 < 60% | 16 | R1 > 60% | 36 |
| Sakao 2004 | 70 | Japan | N | 66 (42-81) | 5:24 | R1 > 1-90% | 38 | ||
| R1 > 90% | 27 | ||||||||
| Ikeda 2004 | 69 | Japan | N | 63 (40-84) | 67:92 | R1 < 50% | 44 | R1 > 50% | 115 |
| Kakinuma 2008 | 80 | Japan | Y | 63 (26-83) | 69:51 | R1 < 50% | 17 | R1 > 50% | 103 |
| Seki 2008 | 71 | Japan | N | Mean = 66 (SD = 11) | 336:156 | R1 = 0-50% | 65 | R1 = 51-99% | 49 |
| Higashi 2009 | 72 | Japan | Y | 64 (42-84) | 40:47 | R1 < 50% | 13 | R1 > 50% | 54 |
| Inoue 2010 | 73 | Japan | N | 65 (38-83) | 41:77 | R1 > 50% | 35 | ||
| Okada 2011 | 81 | Japan | N | 65.3 ± 9.6 | 223:279 | R1 ≤ 80% | 304 | R1 > 80% | 198 |
| Shi 2011 | 74 | China | N | 54 (39-76) | 127:58 | R1 ≤ 2/3 | 19 | R1 > 2/3 | 166 |
| Aokage 2013 | 56 | Japan | Y | <70Y 111; ≥70Y 62 | 75:98 | R1 < 50% | 39 | R1 > 50% | 134 |
| Duann 2013 | 57 | Taiwan | N | 60.3 (40-83) | 23:23 | R1 ≤ 50% | 46 | ||
| Lederlin 2013 | 75 | Europe | Y | N/A | N/A | R1 = 1%-99% | 63 | ||
| Matsuguma 2013 | 76 | Japan | N | 66 (34-85) | 187:196 | R1 < = 20% | 76 | R1 > 20% | 307 |
| Tsutani 2014 | 58 | Japan | N | 66 (37-86) | 74:108 | R1 = 50%-99% | 182 | ||
| Tsutani 2014 | 78 | Japan | N | 65 (31-89) | 94:145 | R1 ≤ 50% | 239 | ||
| Shiono 2014 | 77 | Japan | N | N/A | N/A | R1 = 0-99% | 138 | ||
| Yanagawa 2014 | 59 | Japan | N | 63.6 | 68:77 | R1 < 63% | 88 | R1 > 63% | 57 |
| Cho 2015 | 60 | Korea | N | 60.3 (31-81) | 43:54 | R1 ≤ 25% | 71 | R1 > 25% | 26 |
| Hattori 2015 | 61 | Japan | N | N/A | N/A | R1 = 1%-99% | 45 | ||
| Hwang 2015 | 79 | Korea | N | 61.3 (35-86) | 76:121 | R1 = 1%-99% | 197 | ||
| Li 2015 | 62 | China | Y | 53.9 (28-76) | 161:160 | R1 = 1%-99% | 321 | ||
| Nakamura 2015 | 63 | Japan | N | 71 (56-79) for R1 ≤ 50%; | 64:49 | R1 ≤ 50% | 25 | R1 > 50% | 88 |
| 68 (26-85) for R1 > 50% | |||||||||
| Sakurai 2015 | 64 | Japan | N | 61.8 (33-78) | 64:87 | R1 = 1%-50% | 89 | R1 = 50%-99% | 62 |
| Yano 2015 | 65 | Japan | N | NA | NA | R1 < = 25% | 783 | R1 > 25% | 755 |
| Totals | 20 groups | 2042 | 27 groups | 3371 | |||||