In those cases, what small numbers might be found, the prevalence of the forms of the surname differs by country.

The prevalence of phantom limb pain differs based on the location of the amputation.

Available data suggest that the prevalence of obsessive-compulsive disorder does not differ by culture, except where prevalence rates differ for all psychiatric disorders.

However, the prevalence of the six types differs dramatically.

Stuttering occurs in all cultures and ethnic groups (Andrews et al. 1983; Zimmermann et al. 1983), although prevalence might differ.

Their prevalence differs between countries, as shown by international tariff surveys.

The prevalence of Dactylogyrus infection on fish differ depending on the seasons.

The prevalence of Toxoplasma seropositivity was 15% and did not differ by HIV infection status.

The prevalence of impaired fasting glucose did not differ significantly between adolescents and adults, either in male or female.

The prevalence (how common it is) differs among groups of people.