A lot of people have done a lot of studies when it comes to Balanitis. The following are some information taken from Wikipedia:
Fergusson et al., penile inflammation was reported in 7.6 cases per 100 boys at risk in circumcised boys, and 14.4 cases per 100 boys at risk among uncircumcised boys.
Van Howe found that both circumcised and uncircumcised boys have to be equally monitored for Balanitis.
Herzog and Alvarez reported that, in their study, "[both] balanitis (6% vs 3%) and irritation (4% vs 1%) were more frequent among the uncircumcised children, but the difference was not statistically significant."
In Wilson's study, all 22 cases of balanitis were among uncircumcised men. However, the number of cases was "too small to be of significance".
In a retrospective study including 28 cases of monilial balanitis, Taylor and Rodin found this condition to be more common among uncircumcised men.
In a study assessing the effects of a war environment on sexual
health, Hart reported that balanitis was "almost entirely confined to the uncircumcised".
In a cross-sectional study of 398 patients, Fakjian et al. reported that balanitis was diagnosed in 12.5% of uncircumcised men and 2.3% of circumcised men.
In a study of 225 men, O'Farrell et al. found that circumcised men were less likely to be diagnosed with balanitis than uncircumcised men.
In Mallon's study of 357 patients with genital skin diseases and 305 controls, most cases of inflammatory penile dermatoses (and all patients with nonspecific balanoposthitis) were uncircumcised.
As for the present day scenario almost 3-11 percent of men in the US are known to be affected by Balanitis. Blacks and Hispanics are seen to have Balanitis in greater number due to the different Circumcision rates. Balanitis does not lead to deaths but certain cases of balanitis can lead to impotence. Balanitis can occur in male of all ages.