(Paul Zimmerman, "The New Thinking Man's Guide to Pro Football," Simon and Schuster, 1984, p. 110) With the increasing prevalence of zone defenses in the 1960s, playing wide receiver became more than just beating a single defender one-on-one.
This may be responsible for the high prevalence in zone one, as infection is easily transmitted within the entire herd under this management system, even if it is not significantly higher.
These should be undertaken in districts in high prevalence ecological zones, probably through "red urine" questionnaire surveys of school children.
Our results are consistent with WHO's estimate that two-thirds of preschool-age children in Africa are anemic [ 30], and within Nigeria, are similar to those from the 2010 MIS, which found 71.7% anemia prevalence in South East zone and 56.0% in North Central zone among children under five [ 1].
We also obtained estimates of the prevalence of gray zone alleles in different ethnic groups.
For each health zone, prevalence rates were reported by sex and immigration status, with 95% CIs.
Specifically, the prevalence of gray zone alleles was higher in White males compared to Black and Hispanic males.
The observed prevalence of gray zone alleles was similar across White (1 58), Black (1 75) and Hispanic groups (1 59) in females.
The prevalence of gray zone alleles was 1 66 females and 1 112 males, while the prevalence of a premutation was 1 209 females and 1 430 males.
The observed prevalence of gray zone alleles in White males (1 61) was significantly higher than in black males (1 142, P = 0.0153), and Hispanic/Latino males (1: 198, P = 0.0007).
