Community and Population Health
1) The following is an example of primary 4) Which of the following statements regarding
prevention: measurements of the effectiveness of
a) Routine mammography to detect early interventions is false?
breast cancer tumour growth a) Relative risk reduction (RRR) is defined
b) Routine Pap smear to detect early as the proportional reduction in rates of
endocervical cytological changes bad outcomes between experimental
c) ACE inhibitor to treat hypertension and control participants in a trial
d) Vaccination to prevent diphtheria b) Absolute risk reduction (ARR) is defined
e) Lithium to manage mood symptoms as the absolute arithmetic difference in
associated with bipolar disorder rates of bad outcomes between
experimental and control participants in
a trial
2) The number one cause of potential years of c) The number needed to treat (NNT) is
life lost (PYLL) in Canada is: defined as the inverse of the absolute
a) Neoplasm risk reduction (ARR) -- i.e. 1/ARR
b) Circulatory disease d) Compliance is defined as the degree to
c) Unintentional injuries which a patient adheres to a treatment
d) Suicide plan
e) Respiratory disease e) Effectiveness is defined as the extent to
which a specific intervention produces a
beneficial result under ideal conditions
3) Which of the following statements regarding achieved in a clinical trial
sensitivity of Test X for Disease Y is true?
a) It is defined as the true positives divided
by the false negatives 5) Which is not a result of chronic lead
b) It refers to the proportion of the people exposure?
who do not have Disease Y whose Test a) Peripheral motor neuropathy
X is negative b) Nephrotoxicity
c) If Test X is sensitive and is found to be c) Hemolytic anemia
negative, it can be used to rule out a d) Microcytic anemia
disease hypothesis
d) Sensitivity and specificity are not useful
in determining the likelihood ratio of a 6) Which is not a function of municipal public
test health units?
e) The positive predictive value of Test X is a) Tobacco legislation enforcement
the inverse of the sensitivity of Test X b) Inspections of restaurants
c) Approval of new medications
d) Reportable disease surveillance and
follow-up
7) Which of the following is not a reportable
disease?
a) HIV
b) Measles
c) Tetanus
d) Streptococcal pharyngitis
, 8) Which is an example of a propagated 12) Lead exposure typically results in:
epidemic? a) Chronic dermatitis
a) Exposure is brief and essentially b) Resting and intention tremor
simultaneous after exposure to a c) Extensor muscle weakness
common source d) Arrhythmias
b) Begins with only a few exposed e) Cerebellar ataxia
persons, but is maintained by person-
to-person transmission
c) Exposure to a common source lasts for 13) Which of the following statements
a period of days to weeks concerning the Worker’s Compensation Act
is true?
a) The worker reserves the right to sue the
9) Which is an example of a cohort study? employer for negligence
a) Subjects are sampled, and as a group b) Funding is provided by the provincial
are classified on the basis of presence government
or absence of exposure to a particular c) The worker is guaranteed payment from
risk factor the first day of injury/illness if it is
b) Samples a group of people who already deemed to be work-related
have a particular outcome and d) The Worker’s Compensation Board is
compares them to a similar sample an independent, private agency
group without that outcome e) None of the above
c) Status of individual with respect to
presence and absence of both
exposure and disease assessed at one 14) Which of following statements regarding
point in time radiation is false?
d) Random distribution of baseline a) Natural background radiation accounts
characteristics and treatment between for about half of a typical person’s
groups exposure
b) Ionizing radiation causes intestinal villi
to become denuded
10) Which is not true of the WSIB? c) Exposure to non-ionizing radiation may
a) The WSIB decides benefits for workers result in cataracts
b) The employers pay for WSIB costs d) Ionizing radiation results in an increased
c) Once a claim has been made, incidence of neoplasia such as lung and
physicians are required to provide the thyroid
WSIB with information about a worker's e) None of the above
health
d) Workers are able to sue the employer
up to a maximum of $100,000 in cases 15) Which statement concerning vibration
of negligence induced white finger disease is false?
a) Early symptoms include tingling and
numbness of the fingers when at rest
11) Which one of the following is not a typical b) Swelling of the fingers over knuckles
feature of asbestosis? may be an early feature
a) Increased risk of cancer c) Cold, damp conditions may precipitate
b) Pleural thickening and calcification symptoms
c) Interstitial fibrosis d) The affected area eventually spreads to
d) Obstructive pattern on pulmonary involve all fingers
function tests e) None of the above
e) None of the above
1) The following is an example of primary 4) Which of the following statements regarding
prevention: measurements of the effectiveness of
a) Routine mammography to detect early interventions is false?
breast cancer tumour growth a) Relative risk reduction (RRR) is defined
b) Routine Pap smear to detect early as the proportional reduction in rates of
endocervical cytological changes bad outcomes between experimental
c) ACE inhibitor to treat hypertension and control participants in a trial
d) Vaccination to prevent diphtheria b) Absolute risk reduction (ARR) is defined
e) Lithium to manage mood symptoms as the absolute arithmetic difference in
associated with bipolar disorder rates of bad outcomes between
experimental and control participants in
a trial
2) The number one cause of potential years of c) The number needed to treat (NNT) is
life lost (PYLL) in Canada is: defined as the inverse of the absolute
a) Neoplasm risk reduction (ARR) -- i.e. 1/ARR
b) Circulatory disease d) Compliance is defined as the degree to
c) Unintentional injuries which a patient adheres to a treatment
d) Suicide plan
e) Respiratory disease e) Effectiveness is defined as the extent to
which a specific intervention produces a
beneficial result under ideal conditions
3) Which of the following statements regarding achieved in a clinical trial
sensitivity of Test X for Disease Y is true?
a) It is defined as the true positives divided
by the false negatives 5) Which is not a result of chronic lead
b) It refers to the proportion of the people exposure?
who do not have Disease Y whose Test a) Peripheral motor neuropathy
X is negative b) Nephrotoxicity
c) If Test X is sensitive and is found to be c) Hemolytic anemia
negative, it can be used to rule out a d) Microcytic anemia
disease hypothesis
d) Sensitivity and specificity are not useful
in determining the likelihood ratio of a 6) Which is not a function of municipal public
test health units?
e) The positive predictive value of Test X is a) Tobacco legislation enforcement
the inverse of the sensitivity of Test X b) Inspections of restaurants
c) Approval of new medications
d) Reportable disease surveillance and
follow-up
7) Which of the following is not a reportable
disease?
a) HIV
b) Measles
c) Tetanus
d) Streptococcal pharyngitis
, 8) Which is an example of a propagated 12) Lead exposure typically results in:
epidemic? a) Chronic dermatitis
a) Exposure is brief and essentially b) Resting and intention tremor
simultaneous after exposure to a c) Extensor muscle weakness
common source d) Arrhythmias
b) Begins with only a few exposed e) Cerebellar ataxia
persons, but is maintained by person-
to-person transmission
c) Exposure to a common source lasts for 13) Which of the following statements
a period of days to weeks concerning the Worker’s Compensation Act
is true?
a) The worker reserves the right to sue the
9) Which is an example of a cohort study? employer for negligence
a) Subjects are sampled, and as a group b) Funding is provided by the provincial
are classified on the basis of presence government
or absence of exposure to a particular c) The worker is guaranteed payment from
risk factor the first day of injury/illness if it is
b) Samples a group of people who already deemed to be work-related
have a particular outcome and d) The Worker’s Compensation Board is
compares them to a similar sample an independent, private agency
group without that outcome e) None of the above
c) Status of individual with respect to
presence and absence of both
exposure and disease assessed at one 14) Which of following statements regarding
point in time radiation is false?
d) Random distribution of baseline a) Natural background radiation accounts
characteristics and treatment between for about half of a typical person’s
groups exposure
b) Ionizing radiation causes intestinal villi
to become denuded
10) Which is not true of the WSIB? c) Exposure to non-ionizing radiation may
a) The WSIB decides benefits for workers result in cataracts
b) The employers pay for WSIB costs d) Ionizing radiation results in an increased
c) Once a claim has been made, incidence of neoplasia such as lung and
physicians are required to provide the thyroid
WSIB with information about a worker's e) None of the above
health
d) Workers are able to sue the employer
up to a maximum of $100,000 in cases 15) Which statement concerning vibration
of negligence induced white finger disease is false?
a) Early symptoms include tingling and
numbness of the fingers when at rest
11) Which one of the following is not a typical b) Swelling of the fingers over knuckles
feature of asbestosis? may be an early feature
a) Increased risk of cancer c) Cold, damp conditions may precipitate
b) Pleural thickening and calcification symptoms
c) Interstitial fibrosis d) The affected area eventually spreads to
d) Obstructive pattern on pulmonary involve all fingers
function tests e) None of the above
e) None of the above
