Based on five case-control or cross-sectional studies
and four cohort studies that involved a total of 7,794,087 participants, the researchers found significant associations between psoriasis and Crohn's disease (odds ratio, 1.7) and between psoriasis and ulcerative colitis (OR, 1.75).
These findings were consistent with the results of the cross-sectional studies
in US and Turkey.13-16
Among the cross-sectional studies
examined--that is, studies that gather information from a representative subset of the population at a certain point in time--researchers found a significant association between age-related hearing loss and cognitive impairment and dementia.
Evidence for adverse health effects of excessive sedentary behaviour in children is predominantly based on cross-sectional studies
, measuring TV viewing as the single indicator of sedentary behaviour.
A meta-analysis of three studies that examined the association between circulating serum 25 (OH) D levels and breast cancer risk in pre-menopausal women reported a significant inverse relationship (OR = 0.66, 95% CI = 0.50 - 0.58).8 Most of the cross-sectional studies
showed findings consistent to our study where no significant association was found between serum 25(OH) D levels and percent breast density.
In addition to the positive results in cross-sectional studies
linking rice consumption with healthier diets, a human clinical trial found that having white or brown rice at a meal increased satiety and feelings of fullness more than a calorically equivalent glucose solution control.4 Considering the cross-sectional and clinical findings, both enriched white rice and whole grain brown rice should be recommended as part of a healthy diet.
The observed association between higher current concentrations of BPA in both male and female 9-year-olds with higher body fat and obesity levels is consistent with findings from other cross-sectional studies
of adults and older children.
This review compared six cohort, before-and-after, and serial cross-sectional studies
, from Bangladesh, India, Pakistan, and Nigeria (1,831 women with eclampsia) and two population-based UK studies with results from randomised controlled trials.
The 4-year longitudinal data revealed a lower persistent remission rate than had been suggested by earlier cross-sectional studies
. "Our findings suggest that in addition to the increasingly recognized diffaculties that older adults with schizophrenia face with respect to physical health, there is substantially more psychiatric instability than previously believed," said Dr.
Retrospective cohort studies and cross-sectional studies
have shown an association between ache therapy with oral antibiotics and pharyngitis, but no prospective study has examined the issue until now.
They selected randomised trials and cohort, case-control, and cross-sectional studies
carried out in human adults, in which the association between chocolate consumption and the risk of outcomes related to cardiometabolic disorders were reported.
A positive or negative thyroid peroxidase antibody (TPOAb) test increases or decreases the probability of autoimmune thyroid disease by only a small to moderate degree (SOR: B, 3 cross-sectional studies