Generic Prevacid (Lansoprazole, Prevacid® equivalent)
Prevacid is a Proton Pump Inhibitor used to treat ulcers, erosive esophagitis, gastro esophageal reflux, and Zollinger-Ellison syndrome. Lansoprazole may also be used to treat ulcers due to long-term use of certain pain/anti-inflammatory medications. It may be used in combination with antibiotics, and it may also be used to treat other conditions as well.
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30mg
| Quantity | Price | Price per pill | Returning customer price | Bonus | |
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| 10 | € 40.81 | € 4.08 | € 36.19 | ---- | Add to cart |
| 20 | € 46.20 | € 2.31 | € 41.58 | ---- | Add to cart |
| 30 | € 51.59 | € 1.72 | € 46.20 | ---- | Add to cart |
Drug Medical Information
AGE AND BEHAVIOR: RESEARCH METHODS - AGE AND CULTURE CONFOUNDED - LONGITUDINAL STUDIES
Among investigators of aging processes, it is generally understood and accepted that cross-sectional studies confound the influences of age and culture. It is less understood, and not generally accepted or emphasized, that longitudinal studies can also confound age and culture. While it is possible that the confounding is less frequent in longitudinal studies than in cross-sectional ones and, when present, not as great, the confounding must be recognized, nevertheless. In longitudinal studies the same people are examined during several periods of time, usually with a number of years between examinations.
Let us examine a longitudinal study analogue of the cross-sectional study in which the discovery was made that as people grow older they develop Italian accents. A recent longitudinal study showed that as people age, if they also become psychotic, they begin to speak Yiddish! Two colleagues described this discovery to me.* They were carrying out investigations of deteriorated psychotic elderly who resided in a nursing home and who required custodial care. Actually, the investigators did not carry out longitudinal studies, but they did learn much about the past life of the nursing home residents from retrospective accounts. They learned that the native tongue of these Jewish residents was Yiddish, but that they had resided in this country for many, many years and, during this time had spoken English as their usual language. In late life and in senile deterioration, however, they reverted to their mother tongue. Had these two investigators made periodic longitudinal observations of their subjects from the time of young adulthood when English was spoken to the time of old age and senile deterioration, it would have been seen that as they grew older they began to speak Yiddish.
In this example, the confounding influences of culture and age took place within the lifetime of the individual. The confounding was apparent and not a problem in the interpretation. But there are many longitudinal studies where the confounding is much less apparent. Kuhlen (1963) may have been the first to recognize this problem in the context of aging research; he provided some examples. Nelson (1954) tested college students and then, 14 years later, tested them again. He noted a marked trend in liberalism. Fortunately, Nelson tested a new sample of college students at the time he retested the initial sample. He found that the scores of the new college students and those retest scores of the older subjects were about the same. The cultural influences had their impact, confounding the maturational effects, all in the course of a single lifetime.
*422\220\8*
