Table 4 Age-adjusted relative risk* (95% CI) for ischaemic heart disease (IHD) and chronic bronchitis (CB) by years smoked among physicians who have ever smoked, compared to those who have smoked up to 5 years (population estimates)^a

IHD

Male

1.82 (0.61–5.41)

2.72 (0.92–7.97)

3.02 (1.08–8.45)

2.44 (0.85–7.02)

3.27 (1.15–9.32)

2.91 (1.08–7.83)

Female

1.83 (0.60–5.56)

5.40 (2.04–14.28)

1.75 (0.56–5.42)

4.32 (1.59–11.75)

Total

2.17 (0.96–4.89)

1.92 (0.77–4.82)

5.70 (2.65–12.26)

2.38 (1.07–5.30)

2.10 (0.88–5.01)

4.54 (2.19–9.40)

CB

Male

1.08 (0.31–3.74)

2.04 (0.60–6.97)

2.31 (0.73–7.31)

0.79 (0.30–2.06)

1.17 (0.42–3.25)

2.10 (0.86–5.16)

Female

3.61 (0.80–16.30)

4.95 (1.05–23.38)

5.75 (1.14–29.04)

4.64 (1.05–20.47)

6.75 (1.56–29.16)

12.38 (2.97–51.61)

Total

2.22 (0.85–5.82)

3.55 (1.32–9.55)

4.86 (1.86–12.72)

1.91 (0.85–4.32)

2.77 (1.20–6.38)

5.42 (2.49–11.78)

Any condition^d

Male

1.02 (0.45–2.33)

1.91 (0.87–4.17)

2.65 (1.31–5.36)

1.04 (0.51–2.12)

1.68 (0.85–3.33)

2.46 (1.35–4.50)

Female

2.20 (0.90–5.39)

1.70 (0.60–4.81)

6.59 (2.83–15.33)

2.56 (1.03–6.20)

2.36 (0.91–6.10)

7.11 (3.13–16.14)

Total

1.76 (0.93–3.30)

2.30 (1.19–4.44)

7.11 (3.13–16.14)

1.79 (1.01–3.18)

2.23 (1.24–4.03)

5.13 (3.06–8.62)