The purpose of this study is to expand the boundaries of our knowledge by exploring some relevant information relating to the quantitative analysis report on effects of selective serotonin reuptake inhibitors and venlafaxine during pregnancy in term and preterm neonates. Throughout its development, epidemiology has concerned two main objectives (Morton, 2001):
Prove causation and,
Identify risk
The prominence of each of these objectives has been determined by the conceptual model of health and prevailing disease. The emphasis on risk, however, is strongly developed in relation to the concept of chronic diseases. Achieving both objectives has forced the researchers to formulate research designs of varying complexity. These experimental study designs are recognized as the only way of proving causation with reliability. Cohort studies consist of one or more monitoring cohort of healthy individuals (neonatal) having different degrees of exposure to a risk factor. A cohort study consists of a group that experiences an event in a selected time period, and studied at intervals of time (Liddell, 1988). It thus allows to detect possible risk factors in a population. It consists of a comparison of the different incidence of a given phenomenon, such as an occupational disease, between the group exposed to the risk factor, and the group not exposed to the risk factor. It is considered one of the most useful and appropriate observational methods, along with those "case-control", to investigate a cause / effect relationship (Liddell, 1988).
A cohort is a group of people who show a common characteristic or similar experience in a given period of time. The comparison group could be the general population from which the cohort group is "clipped", or it could be another cohort of people who have only a small or no exposure to the substance under study. For each patient the data is known on the state of exposure throughout the period of follow-up (Morton, 2001). A patient may have been exposed to a drug at a given time during follow-up, but not in another instant of time. Since population to exposure during follow-up is known, it is possible to calculate the incidence rate. In many cohort studies involving exposure to the drug, cohorts of interest are selected based on the use of the drug and followed over time. Cohort studies are useful when it is necessary to know the incidence rate of adverse events (Morton, 2001). In this paper, the author will conduct a quantitative analysis of the research paper on the neonatal behavioral signs.
Discussion & Analysis
In this article, the author has examined the behavioral signs of neonatal at the time of delivery. The group of neonatal selected for the examination was exposed in utero to selective serotonin reuptake inhibitors or venlafaxine at the time of delivery (Ferreira, 2007). The purpose of conducting this research is to evaluate the rate and time of behavioral signs of neonatal, prematurity, and admittance in the specialized neonatal care between a group of exposed and unexposed newborns. Finally, the researcher has also determined comparable factors between the ...