From: Association between shift work and the risk of death from biliary tract cancer in Japanese men
Biliary tract cancer | ||||||
---|---|---|---|---|---|---|
Person-years | Deaths | HR1 | 95 % CI | HR2 | 95 % CI | |
Daytime work | 322,340 | 78 | 1.00 | 1.00 | ||
Permanent nighttime work | 19,565 | 4 | 0.81 | 0.30-2.20 | 0.86 | 0.31-2.36 |
Rotating shift work | 41,042 | 12 | 1.43 | 0.78-2.63 | 1.50 | 0.81-2.77 |
Extrahepatic bile duct cancer | Person-years | Deaths | HR1 | 95 % CI | HR2 | 95 % CI |
Daytime work | 322,340 | 56 | 1.00 | 1.00 | ||
Permanent nighttime work | 19,565 | 4 | 1.13 | 0.41-3.11 | 1.19 | 0.43-3.31 |
Rotating shift work | 41,042 | 11 | 1.83 | 0.96-3.51 | 1.93 | 1.00-3.72 |