Gender and locality differences in tobacco prevalence among adult Bangladeshis

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Whole Brain Size and General Mental Ability: A Review

We review the literature on the relation between whole brain size and general mental ability (GMA) both within and between species. Among humans, in 28 samples using brain imaging techniques, the mean brain size/GMA correlation is 0.40 (N = 1,389; p < 10−10); in 59 samples using external head size measures it is 0.20 (N = 63,405; p < 10−10). In 6 samples using the method of correlated vectors to distill g, the general factor of mental ability, the mean r is 0.63. We also describe the brain size/GMA correlations with age, socioeconomic position, sex, and ancestral population groups, which also provide information about brain–behavior relationships. Finally, we examine brain size and mental ability from an evolutionary and behavior genetic perspective

Lack of an Association between ABO and Rh Blood Group Polymorphisms and Stature, Body Weight, and BMI in a Cohort of British Women

Analysis of variance shows no significant associations between stature, weight, or body mass index (BMI) and ABO or Rh blood group phenotypes among a sample of mothers in England, Scotland, and Wales whose children were born during March 3-9, 1958. Social factors are significantly associated with stature and weight; the effects of social class of the women’s fathers, regions of birth of the women, their ages, whether their education continued beyond age 16 or not, and the total number of births were separated out by regression analysis. The adjusted residual regression of ABO and Rh phenotypes were not significantly related to reported stature, weight, or BMI