Table 2 Information, risk estimation and quality assessment of studies with medical controls
From: The occupational risk of Helicobacter pyloriinfection among gastroenterologists and their assistants
First author, year | Study area | Gastros (HP positive %) | Controls (HP positive %) | Diagnostic method | RR | 95%CI | Study quality |
|---|---|---|---|---|---|---|---|
Noone 2006 [46] | Scotland | A 74 (32) | 148 (33) | Serology | A 0.98 | 0.7-1.5 | good |
Mastromarino 2005 [25] | Italy | S 92 (40) D 47 (34) A 45 (37) | 105 (35) | Stool antigen test | S 1.05 D 0.97 A 1.1 | 0.7-1.5 0.6-1.6 0.7-1.8 | good |
Birkenfeld 2004 [26] | Israel | S 190 (73) D 88 (72) A 50 (53) | 98 (70) | Breath test | S 1.02 D 1.00 A 1.02 | 0.9-1.2 0.9-1.2 0.8-1.3 | good |
Monés 1999 [29] | Spain | D 137 (53) | 44 (50) | Breath test | D 1.07 | 0.8-1.3 | good |
Potts 1997 [47] | England/Wales | D 30 (50) | 30 (10) | Breath test | D 5.0 | 1.6-15.5 | good |
Braden 1997 [32] | Germany | S 1091 (38) D 922 (38) A 169 (37) | 604 (36) | Breath test | S 1.05 D 1.06 A 1.02 | 0.9-1.2 0.9-1.2 0.8-1.3 | good |
Su 1996 [48] | Taiwan | D 70 (80) | 64 (52) | Serology | D 1.6 | 1.2-2.0 | good |
Goh 1996 [33] | Malaysia | S 82 (33) D 34 (41) A 48 (27) | 25 (12) | Breath test | S 2.74 D 3.4 A 2.3 | 0.9-8.3 1.1-10.7 0.7-7.2 | good |
Prónai 2000 [38] | Hungary | D 101 (30) | 108 (35) | Breath test | D 0.8 | 0.6-1.3 | moderate |
Kamat 1999 [39] | India | D 17 (29) | 17 (18) | Serology | D 1.7 | 0.5-5.9 | moderate |
Rudi 1997 [40] | Germany | S 75 (24) | 272 (35) | Serology | S 0.7 | 0.5-1.1 | moderate |
Mitchel 1989 [42] | Australia | S 101 (30) D 33 (51) A 68 (19) | 35 (29) | Serology | S 1.04 D 1.8 A 0.7 | 0.6-1.9 0.97-3.4 0.3-1.4 | moderate |