Table 3

Risk of any cancer and the most frequently occurring cancers in New South Wales opioid substitution therapy registrants, by sex and current age (1985–2007)

Cancer type	Obs	Exp	SIR	95% CI
All cancer
Men	536	431	1.24	1.14–1.35
Women	283	285	0.99	0.88–1.11
<40 years	282	295	0.96	0.85–1.07
40–49 years	357	282	1.27	1.14–1.40
≥50 years	180	139	1.30	1.12–1.50
Liver
Men	51	6.92	7.37	5.49–9.69
Women	12	0.91	13.2	6.80–23.0
<40 years	4	1.62	2.47	0.67–6.33
40–49 years	26	3.96	6.57	4.29–9.63
≥50 years	33	2.26	14.6	10.1–20.6
Trachea, bronchus and lung
Men	82	19.8	4.15	3.32–5.11
Women	28	7.59	3.69	2.45–5.33
<40 years	15	4.11	3.65	2.04–6.02
40–49 years	58	13.0	4.46	3.41–5.71
≥50 years	37	10.2	3.61	2.57–4.90
Melanoma
Men	64	91.2	0.70	0.54–0.89
Women	37	48.7	0.76	0.54–1.03
<40 years	48	71.6	0.67	0.50–0.88
40–49 years	37	51.4	0.72	0.51–0.98
≥50 years	16	16.9	0.95	0.56–1.49
Female breast
<40 years	15	32.5	0.46	0.27–0.74
40–49 years	27	54.3	0.48	0.32–0.69
≥50 years	6	14.1	0.43	0.17–0.86
Cervical
<40 years	21	11.0	1.90	1.20–2.84
40–49 years	14	4.67	3.00	1.64–5.03
≥50 years	2	0.63	3.19	0.39–11.5
Non-Hodgkin's lymphoma
Men	62	38.1	1.63	1.26–2.07
Women	13	11.5	1.13	0.62–1.86
<40 years	25	20.9	1.20	0.79–1.73
40–49 years	37	19.8	1.87	1.33–2.54
≥50 years	13	8.94	1.46	0.78–2.49

Exp, expected number of cancers; Obs, observed number of cancers; SIR, standardised incidence ratio.