Table 3.

ORsa and 95% CIs for stage distribution of breast cancer for selected breast implant characteristics

Stage
CharacteristicsStage I/II casesStage III/IV casesOR95% CI
Type of fill
 Saline4471.0
 Silicone194351.470.57–3.80
 Unknown47132.220.71–6.90
Polyurethane coating
 No180311.0
 Yes2241.730.52–5.79
 Unknown83201.810.90–3.66
Fill volume (cc)
 <200143281.0
 ≥200141270.880.48–1.61
 Unknown100.00N.E.
Site of implantation
 Submuscular142311.0
 Subglandular108190.780.41–1.47
 Unknown3550.560.20–1.59
  • aOR adjusted for age at diagnosis, period of diagnosis, and province.