NU713 Final Exam Questions with correct Answers 2024
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Course
NU1426
Institution
NU1426
NU-713 Final Exam Questions with correct Answers 2024
Kaplan-Meier Method formula
Information bias
Surveillance bias
It has been suggested that physicians may examine women who use oral contraceptives more often or more thoroughly than women who do not. If so, and if an association is observed ...
NU-713 Final Exam Questions with correct
Answers 2024
1). Kaplan-meier method formula
Ans: the simplest way of computing the survival over time in spite of all these
difficulties associated with subjects or situations. For each time interval, survival
probability is calculated as the number of subjects surviving divided by the number of
patients at risk
2). Information bias
Ans: The means for obtaining information about subjects is inadequate, and outcomes
are incorrect
3). Surveillance bias
Ans: May result in erroneous estimates of the relative risk or odds ratio by paying
closer attention to a monitored population
4). It has been suggested that physicians may examine women who use oral contraceptives
more often or more thoroughly than women who do not. if so, and if an association is
observed between phlebitis and oral contraceptive use, the association may be due to:
Ans: surveillance bias
5). Bias
Ans: Any systematic error in the design, conduct, or analysis of a study that results in a
mistaken estimate of an exposure's effect on the risk of disease
6). Selection bias
Ans: A focus on effects rather than causes, which can lead to inaccurate conclusions
about correlation or causation
7). Uspstf grade a
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, Ans: The USPSTF recommends the service. There is high certainty that the net benefit
is substantial. Offer or provide this service.
8). Uspstf grade b
Ans: The USPSTF recommends the service. There is high certainty that the net benefit
is moderate or there is moderate certainty that the net benefit is moderate to substantial.
Offer or provide this service.
9). Uspstf grade c
Ans: The USPSTF recommends selectively offering or providing this service to
individual patients based on professional judgment and patient preferences. There is at
least moderate certainty that the net benefit is small. Offer or provide this service for
selected patients depending on individual circumstances.
10). Uspstf grade d
Ans: The USPSTF recommends against the service. There is moderate or high certainty
that the service has no net benefit or that the harms outweigh the benefits. Discourage
the use of this service.
11). Uspstf grade i
Ans: The USPSTF concludes that the current evidence is insufficient to assess the
balance of benefits and harms of the service. Evidence is lacking, of poor quality, or
conflicting, and the balance of benefits and harms cannot be determined. Read the
clinical considerations section of USPSTF Recommendation Statement. If the service is
offered, patients should understand the uncertainty about the balance of benefits and
harms.
12). Cohort study design
Ans: Observational study wherein two groups, exposed and unexposed, are followed
over a period of time until the development of the outcome of interest.
13). A cohort study design compares those exposed and those not exposed to follow up on
________.
Ans: the time in which the disease developed
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