Spontaneous abortion in a hospital population: are tobacco and coffee intake risk factors?

The objective of this study was to examine the possible relationships between spontaneous abortion and caffeine, tobacco and alcohol intake in a well-controlled group of hospital workers. A retrospective cohort study design including 711 women, 20 to 41 years old, was used. All data regarding the purpose of this study were extracted from clinical histories registered at the Preventive Medicine Service.

Analysis of several risks factors involved in dental caries through multiple logistic regression.

Through multiple logistic regression an epidemiological study was undertaken of the following factors: age, gender, socio-economic status, dental care, toothbrushing, chewing gum, snacking, fluoride, and of their influence on the development of tooth decay. The factors are analysed individually and globally (global model). An initial model was constructed, establishing the interactions, and developing a final model.