Knowledge gaps in key risk factor numbers Knowledge gaps in key risk factor numbers.(A and B) Proportion by age and gender groups, who knew their total cholesterol and blood pressure numbers; (C) proportion who knew their risk factor numbers individually and in combination. Knowledge gaps in key risk factor numbers.(A and B) Proportion by age and gender groups, who knew their total cholesterol and blood pressure numbers; (C) proportion who knew their risk factor numbers individually and in combination. Riyaz S Patel et al. BMJ Open 2016;6:e011511 ©2016 by British Medical Journal Publishing Group