Figure 1

Multivariate HRs and 95% CIs for prostate cancer by quintile of observed intake of protein and calcium. All models are stratified by centre and adjusted for education, marital status, height, weight and energy intake. Mean intakes in each quintile based on 24-h recall data are: 80, 90, 98, 105 and 121 g day⁻¹ for protein; 47, 59, 64, 69 and 80 g day⁻¹ for animal protein; 10, 14, 17, 21 and 27 g day⁻¹ for dairy protein; 29, 33, 36, 38 and 47 g day⁻¹ for plant protein; 0.78, 0.92, 1.01, 1.10 and 1.32 g day⁻¹ for total calcium; 0.30, 0.44, 0.56, 0.68 and 0.88 g day⁻¹ for dairy calcium; and 0.38, 0.42, 0.45, 1.8 and 5.5 g day⁻¹ for nondairy calcium. ^aP-values for trend are obtained by entering the continuous variable in the model. ^bGreece excluded. ^cUmeå excluded.