|
|
Annals of Bariatric Surgery، جلد ۷، شماره ۱، صفحات ۱۰۰-۱۱۰
|
|
|
| عنوان فارسی |
|
|
| چکیده فارسی مقاله |
|
|
| کلیدواژه‌های فارسی مقاله |
|
|
| عنوان انگلیسی |
Observational Studies in Bariatric Surgery |
|
| چکیده انگلیسی مقاله |
In medical literature, studies are divided into two categories; experimental and observational settings. Experimental studies, entitled randomized controlled trials could test the relationship between exposure and outcome experimentally via control group and random allocation. Observational settings include either analytical or descriptive studies. Descriptive studies consist of case reports and case series that are helpful in present the experience of a case or a series of cases with similar diagnoses in detail which results in hypothesis generation. Cross-sectional studies, as analytical designs, are not capable to survey the temporality of exposure and outcome as simultaneously exposure and outcome status are measured. In case-control studies, subjects follow back from outcome to exposure. The rare diseases are recommended to study using case-control setting to save expenses and time. Both exposure measurement and patient selection is before disease detection in cohort studies. Therefore, they are inefficient for rare diseases or diseases with long latency. Cohort studies are time consuming with high cost and loss to follow-up. This paper elaborately reviews the features, advantages, and disadvantages of different types of observational and experimental studies. |
|
| کلیدواژه‌های انگلیسی مقاله |
Observational Studies,Case-Control Studies,Cohort Studies,Bariatric Surgery,Experimental Studies,Review |
|
| نویسندگان مقاله |
|
|
| نشانی اینترنتی |
http://annbsurg.iums.ac.ir/browse.php?a_code=A-10-31-223&slc_lang=en&sid=1 |
| فایل مقاله |
فایلی برای مقاله ذخیره نشده است |
| کد مقاله (doi) |
|
| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
Basic Science |
| نوع مقاله منتشر شده |
Review/Systematic Review |
|
|
|
برگشت به:
صفحه اول پایگاه |
نسخه مرتبط |
نشریه مرتبط |
فهرست نشریات
|