Table 2.
Included studies with individual data
| Study: first author and year (language if not English) | No. in study | No. included in review | No. of routine sciatica signs reported | If signs specific to PS reported | Selection method |
|---|---|---|---|---|---|
| Adams 1980 [1] | 4 | 4 | 4 | Yes | Not described |
| Barton 1991 [3] | 4 | 4 | Uncertain | Yes | Not described |
| Beatty 1994 [4] | 3 | 3 | 0 | Yes | Not described |
| Beauchesne 1997 [5] | 1 | 1 | 4 | No | Not applicable |
| Brown 1988 [11] | 1 | 1 | 3 | Yes | Not applicable |
| Bustamante 2001 [12] | 2 | 1 | 3 | Yes | Not described |
| Chantraine 1990 (French) [18] | 2 | 1 | 0 | Yes | Not described |
| Chen and Wan 1992 [21] | 2 | 2 | 4 | Yes | Not applicable |
| Chen 1992 [19] | 1 | 1 | 4 | Yes | Not applicable |
| Chen 1994 [20] | 1 | 1 | 4 | Yes | Not applicable |
| Chong 2004 [22] | 1 | 1 | 3 | Yes | Not applicable |
| Colmegna 2007 [24] | 1 | 1 | 1 | Yes | Not applicable |
| Dalmau 2005 [27] | 1 | 1 | 0 | Yes | Not applicable |
| Durrani and Winnie 1991 [30] | 1 | 1 | 4 | Yes | Not applicable |
| El-Rubaidi 2003 (Spanish) [31] | 1 | 1 | 2 | No | Not described |
| Foster 2002 [41] | 7 | 7 | 0 | Yes | Not described |
| Freiberg 1937 [43] | 2 | 2 | 1 | Yes | Not described |
| Gandhavadi 1990 [44] | 1 | 1 | 1 | Yes | Not applicable |
| Guyomarc’h 2004 (French) [45] | 3 | 3 | Uncertain | Yes | Not described |
| Hanania 1998 [47] | 6 | 6 | 0 | No | Not described |
| Hopayian 1999 [48] | 3 | 1 | 2 | Yes | Not described |
| Hughes 1992 [49] | 5 | 5 | 1 | Yes | Not applicable |
| Jankiewicz 1991 [53] | 1 | 1 | 1 | Yes | Not applicable |
| Jroundi 2003 (French) [55] | 1 | 1 | 0 | Yes | Not applicable |
| Julsrud 1989 [56] | 1 | 1 | Uncertain | Yes | Not applicable |
| Karl 1985 [57] | 1 | 1 | 1 | Yes | Not described |
| Kobbe 2008 [61] | 2 | 2 | 1 | Yes | Not described |
| Kosukegawa 2006 [63] | 1 | 1 | 4 | No | Not applicable |
| Kouvalchouk 1996 (French) [64] | 4 | 4 | Uncertain | Yes | Not described |
| Ku 1995 [65] | 1 | 1 | 4 | Yes | Not applicable |
| Lee 2004 [67] | 1 | 1 | Uncertain | Yes | Not applicable |
| Lewis 2006 [68] | 14 | 14 | 3 | No | Not described |
| Mayrand 2006 [72] | 1 | 1 | 3 | Yes | Not applicable |
| Molina 2003 [76] | 1 | 1 | 4 | Yes | Not applicable |
| Nakamura 2003 [77] | 2 | 2 | 0 | Yes | Not described |
| Ozaki [78] | 1 | 1 | 4 | Yes | Not applicable |
| Papadopoulos 1990 [81] | 1 | 1 | 4 | Yes | Not applicable |
| Park 1991 [83] | 1 | 1 | 3 | Yes | Not applicable |
| Richardson 1992 [90] | 1 | 1 | 1 | Yes | Not applicable |
| Robinson 1947 [91] | 2 | 2 | 4 | Yes | Not applicable |
| Rossi 2001 [93] | 1 | 1 | 1 | Yes | Not described |
| Sayson 1994 [95] | 1 | 1 | 3 | Yes | Not applicable |
| Solheim 1981 [99] | 2 | 2 | 2 | Yes | Not applicable |
| Spinner 2001 [100] | 1 | 1 | 3 | Yes | Not described |
| Stegbauer 1997 [101] | 1 | 1 | 4 | Yes | Not applicable |
| Stein 1983 [102] | 2 | 1 | 4 | Yes | Not described |
| Synek 1987 [108] | 1 | 1 | 3 | Yes | Not applicable |
| Synek 1987 [107] | 4 | 1 | 4 | No | Not described |
| Turtas 2006 [112] | 1 | 1 | 3 | Yes | Not applicable |
| Vallejo 2004 [113] | 1 | 1 | 1 | Yes | Not applicable |
| Vandertop 1991 [116] | 1 | 1 | 4 | Yes | Not applicable |
| Wyant 1979 [120] | 2 | 2 | 4 | Yes | Not applicable |