Table 3.

Estimated longitudinal age trend for men

Location	Curve Equation	R square
	$\mathrm{Incidence}\mathrm{rate}=a*e^{-{\left(\frac{mean\_age-b}{c}\right)}^2}$
Brazil	a = 3.502 ∗ 10−3; b = 63.31; c = 23.38	0.9625
China	a = 2.588 ∗ 10−3; b = 57.33; c = 26.83	0.8832
India	a = 2.697 ∗ 10−3; b = 58.48; c = 26.13	0.9171
Russia	a = 1.377 ∗ 10−3; b = 60.83; c = 21.22	0.9053
South Africa	a = 4.791 ∗ 10−3; b = 65.92; c = 18.37	0.9569

Note: Consistent with the note in Fig. 2