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observational cohort study
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muscles and their innervation that
1 prevalence vs incidence 2
cause foot eversion
What kind of study is this? examining
3 incidence of diabetes in vegetarians 4 Delayed puberty in girls
over 4 years?
Don't know?
Terms in this set (78)
Prevalence - number of cases at
a particular time
prevalence vs incidence
Incidence - number of new cases
, odds ratio: for case control
studies control for disease and
examine exposure
odds dz+ in exposed group/odds
dz+ in unexposed
(a/b)/(c/d)
ratio is not a fraction! so the
bottom number is not the total its
odds ratio vs relative risk
the unaffected
relative risk: for cohort studies
that control for exposures and
examine who got the disease
prob getting dz exposed/prob
getting dz unexposed
a/(a+b) / c/(c+d)
case-control studies
When is an odds ratio used
When is a relative risk ratio RCT or Cohort study
used?
Absence of secondary sexual
characteristics by age 13
Delayed puberty in girls
failure of menarche by 16
no testicular growth has occurred
by age 14 or no skeletal growth
delayed puberty in males
spurt has occurred by age 18
MCC of growth delay. growth
lags behind others in same age
constitutional growth delay but remains consistent. Often
there is family history
Will have delayed bone age