Table 2.
Author | Site | Study period | No | Follow up Years | SMR (95% CI) |
---|---|---|---|---|---|
Jess | Olmsted, USA | 1940–2004 | 378 | 14 | 0.8 (0.6–1.0) |
Persson | Stockholm, Sweden | 1955–1984 | 1573 | – | 1.4 (1.2–1.5) |
Winther | Copenhagen, Denmark | 1962–1997 | 1160 | 17 | 1.1 (0.9–1.2) |
Ekbom | Uppsala, Sweden | 1965–1983 | 2509 | – | 1.4 (1.2–1.5) |
Masala | Florence, Italy | 1978–1992 | 689 | 15 | 0.7 (0.56–0.88) |
Farrokhyar | Leeds, UK | 1978–1986 | 356 | – | 1.03 (0.79–1.40) |
Hoie | Europe | 1991–1993 | 775 | 10 | 1.09 (0.86–1.37) |
SMR, standardized mortality ratio.