Table 4

Multivariate adjusteda ORs and 95% CIs for p53+ and p53− breast cancer among women under the age of 45 years in New Jersey, 1990–1992

p53+ OR (95% CI)p53− OR (95% CI)Ratio of the ORs (95% CI)
Race
 White1.01.0
 Black1.65 (0.88–3.10)0.80 (0.42–1.54)2.06 (0.96–4.43)
 Asian/Other1.09 (0.49–2.43)0.60 (0.25–1.47)1.81 (0.64–5.11)
Education
 High school1.01.0
 Any college1.66 (1.05–2.64)0.69 (0.47–1.03)2.39 (1.43–4.00)
Alcohol use (drinks/week)
 None1.01.0
 <70.65 (0.42–1.00)1.27 (0.85–1.88)0.51 (0.31–0.84)
 7+1.11 (0.56–2.22)1.03 (0.51–2.13)1.07 (0.48–2.43)
Body mass index
 <231.01.0
 23–260.83 (0.53–1.32)0.68 (0.44–1.06)1.22 (0.72–2.06)
 27+0.63 (0.39–1.04)0.84 (0.55–1.30)0.75 (0.44–1.30)
Age at first birth (for each additional year)1.02 (0.97–1.07)1.05 (1.00–1.09)0.98 (0.93–1.03)
Parity status
 Ever1.01.0
 Never0.99 (0.60–1.63)1.26 (0.80–1.97)0.79 (0.45–1.38)
Age at menarche
 8–121.01.0
 13+0.75 (0.51–1.11)0.60 (0.42–0.85)1.26 (0.81–1.96)
Family history
 None1.01.0
 First degree2.86 (1.61–5.08)1.70 (0.95–3.04)1.69 (0.92–3.09)
Prior breast biopsy
 No1.01.0
 Yes1.82 (0.84–3.94)3.16 (1.62–6.17)0.58 (0.27–1.23)
Caloric intake (Kcal, in quartiles)
 <11001.01.0
 1100–14501.32 (0.75–2.33)1.68 (1.03–2.76)0.78 (0.41–1.49)
 1450–18301.34 (0.75–2.38)1.07 (0.63–1.84)1.25 (0.63–2.45)
 ≥18301.98 (1.14–3.44)1.71 (1.02–2.86)1.16 (0.61–2.18)
Electric blanket and mattress pad use
 Never1.01.0
 Ever1.56 (1.04–2.35)0.87 (0.59–1.29)1.78 (1.11–2.86)
Cigarette smoking
 Never1.01.0
 Former1.66 (1.02–2.70)1.18 (0.77–1.84)1.40 (0.82–2.39)
 Current1.29 (0.79–2.11)0.66 (0.41–1.06)1.96 (1.10–3.52)
  • a Adjusted for all other variables in the table.