Table 3. Hazard ratios and 95% confidence intervals for the risk of prostate cancer per 1-unit BMI z-score in childhood according to TNM staging classification following subjects from 2004 onwards when TNM staging was introduceda.

				BMI		BMI adjusted for childhood height
Staging group	Age (years)	N	Cases	Hazard ratio	95% Confidence interval	Hazard ratio	95% Confidence interval
Localised
	7	101 401	1277	1.07	1.01–1.14	1.06	0.99–1.13
	8	103 325	1298	1.07	1.00–1.14	1.05	0.98–1.12
	9	103 136	1295	1.05	0.99–1.12	1.03	0.96–1.10
	10	103 059	1291	1.06	0.99–1.13	1.04	0.97–1.11
	11	103 150	1287	1.05	0.98–1.12	1.02	0.96–1.09
	12	102 792	1275	1.05	0.98–1.12	1.02	0.96–1.09
	13	101 903	1256	1.07	1.00–1.14	1.04	0.97–1.11
Metastatic
	7	101 401	677	1.04	0.95–1.13	1.03	0.94–1.12
	8	103 325	687	1.04	0.95–1.13	1.02	0.93–1.12
	9	103 136	695	1.04	0.95–1.13	1.02	0.93–1.12
	10	103 059	699	1.02	0.93–1.11	1.00	0.91–1.09
	11	103 150	698	1.00	0.91–1.10	0.98	0.89–1.07
	12	102 792	694	0.99	0.91–1.08	0.96	0.88–1.06
	13	101 903	680	0.99	0.91–1.08	0.96	0.88–1.06

Abbreviations: BMI=body mass index; TNM=Tumour, Node, Metastasis.

^aStratified by 5-year birth cohorts allowing the baseline hazard to differ by birth cohort.