Table 3.
Demographic Characteristics of Studies Included in Meta-Analysis
| Author(Year) | Country | N | Males/Females | Ethnicity | Mean Age (case/control) |
|---|---|---|---|---|---|
| Aznar(2004) | Spain | 343 | 105/238 | White | <50 |
| Bentolila(1997) | France | 259 | 139/120 | White | 40.6/34 |
| de Paula Sabino(2006) | Brazil | 328 | 72/256 | White/black/mestizo | 31/33.5 |
| De Stefano(1998) | Italy | 270 | 113/157 | White | 33.9/49 |
| Gomez Garcia 2002) | Netherlands | 136 | 61/75 | White | 36/37 |
| Grossman(2002) | Germany | 279 | 138/141 | White | 36/33 |
| Haeusler(2012) | Germany | 326 | 18/26 | White | 36/38.5 (median) |
| Longstreth(1998) | USA | 496 | 0/496 | White/black | 36.6/37.7 |
| Lopaciuk(2001) | Poland | 338 | 207/131 | White | 38.1/33.2 |
| Madonna(2002) | Italy | 394 | 183/211 | White | 38.4/36 |
| Margaglione(1999) | Italy | 1238 | 545/693 | White | 39/35 (median) |
| Martinelli(2006) | Italy | 398 | 0/398 | White | 34.7/34.9 |
| Pezzini(2005) | Italy | 321 | 169/152 | White | 35.0/34.8 |
| Sastry(2006) | UK | 202 | * | White | 33.2/33.2 |
| Slooter(2005) | Netherlands | 960 | 0/960 | White | 38.6/39.7 |
| Urbanus(2009) | Netherlands | 779 | 0/779 | White | 39/39 |
| Voetsch(2000) | Brazil | 378 | 153/217 | White/black | 33.3/34.1 |
*
Data Not Available