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Table 4 Multivariate models predicting case-control status at each reported age group

From: Connecting the dots between breast cancer, obesity and alcohol consumption in middle-aged women: ecological and case control studies

Model*

Odds Ratio (95% CI)

Risk difference (95% CI)

p-value*

Aged 18 to 30 years (n = 170):

 Above median standard drinks per month (> 19)

0.83 (0.41–1.66)

− 0.04 (− 0.17–0.09)

0.513

 Obese (BMI ≥ 30)

0.69 (0.07–6.28)

− 0.05 (− 0.36–0.27)

0.738

 Above median number stressful life events (> 1)

0.78 (0.37–1.63)

−0.03 (− 0.06–0.10)

0.508

 Smoking

0.73 (0.36–1.49)

−0.06 (− 0.20–0.07)

0.382

 Low activity level

0.84 (0.35–2.06)

−0.05 (− 0.20–0.11)

0.708

Aged 31 to 40 years (n = 205):

 Above median standard drinks per month (> 16)

0.58 (0.28–1.16)

−0.09 (− 0.20–0.02)

0.123

 Obese (BMI ≥ 30)

3.47 (1.28–9.42)

0.25 (0.03–0.47)

0.015

 Above median number stressful life events (> 1)

0.76 (0.38–1.50)

−0.03 (− 0.14–0.08)

0.425

 Smoking

0.82 (0.35–1.91)

−0.03 (− 0.17–0.10)

0.652

 Low activity level

0.68 (0.31–1.50)

−0.06 (− 0.18–0.05)

0.341

Aged 41 to 50 years (n = 225):

 Above median standard drinks per month (> 16)

0.81 (0.42–1.53)

−0.03 (− 0.14–0.08)

0.511

 Obese (BMI ≥ 30)

1.11 (0.46–2.65)

0.02 (− 0.15–0.18)

0.822

 Above median number stressful life events (> 2)

0.97 (0.52–1.83)

0.00 (−0.11–0.11)

0.932

 Smoking

0.59 (0.22–1.58)

−0.10 (− 0.30–0.11)

0.291

 Low activity level

1.14 (0.58–2.24)

0.02 (− 0.10–0.14)

0.711

Aged 51 to 60 years (n = 163):

 Above median standard drinks per month (> 16)

0.81 (0.37–1.81)

− 0.04 (− 0.16–0.08)

0.614

 Obese (BMI ≥ 30)

0.56 (0.19–1.66)

−0.07 (− 0.21–0.07)

0.293

 Above median number stressful life events (> 1)

1.28 (0.57–2.85)

0.03 (− 0.09–0.15)

0.552

 Smoking

0.54 (0.17–13.61)

0.07 (−0.16–0.30)

0.697

 Low activity level

1.72 (0.70–4.32)

0.07 (− 0.07–0.22)

0.239

Aged 61 to 70 years (n = 86):**

 Above median standard drinks per month (> 20)

0.28 (0.06–1.20)

−0.16 (− 0.33–0.02)

0.085

 Obese (BMI ≥ 30)

0.73 (0.10–5.41)

−0.04 (− 0.25–0.18)

0.760

 Above median number stressful life events (> 0)

0.98 (0.24–4.04)

−0.02 (− 0.18–0.14)

0.980

 Low activity level

0.67 (0.10–4.44)

−0.01 (− 0.19 – − 0.19)

0.679

  1. *Log binomial models used
  2. **smoking omitted due to low cell counts (2 smokers only)
  3. Significant results (p < 0.05) in bold