No SE | Any SE | |||
---|---|---|---|---|
Ca/Co | OR (95% CI) | Ca/Co | OR (95% CI) | |
Occupational exposure to textile dust | ||||
RA overall | ||||
Unexposed | 376/545 | Referent | 244/102 | 3.4 (2.7 to 4.3) |
Ever exposed | 24/14 | 2.5 (1.3 to 4.9) | 17/1 | 25.1 (3.3 to 189.5) |
AP: 0.8 (0.4 to 1.2)** | ||||
ACPA-positive RA | ||||
Unexposed | 201/545 | Referent | 198/102 | 5.1 (4.0 to 6.6) |
Ever exposed | 9/14 | 1.8 (0.8 to 4.2) | 14/1 | 39.1 (5.1 to 297.5) |
AP: 0.8 (0.5 to 1.2)** | ||||
ACPA-negative RA | 175/545 | Referent | 46/102 | 1.5 (1.1 to 2.0) |
Unexposed | 15/14 | 3.3 (1.6 to 6.9) | 3/1 | 9.3 (1.0 to 89.4) |
Ever exposed | AP: 0.6 (−0.4 to 1.6) |
*All estimates adjusted for age group, geographical area, educational levels and ethnicity.
**p<0.0001.
ACPA, anti-citrullinated protein antibody; AP, attributable proportion due to interaction; Ca/Co, case/control.