SantΓ© Publique Test

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SantΓ© Publique Test

 

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What is the statement of negative predictive value of a diagnostic test:

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A screening test result for cervical cancer show that PPV= 67%. It means that:

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If the variance of a data set is correctly computed with the formula using n – 1 in the denominator, which of the following is true?

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The width of a confidence interval is influenced by:

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The director of the blood bank wants to know whether blood donors who test positive should be informed of their positive HIV status on the basis of this test. What do you need to calculate in order to help you advise the director?

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What is the correct answer about a point estimatestatement:

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A group of 100 people are asked to state their favourite colour. 60 say blue. This experiment says that the probability of someone choosing blue is:

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What is the correct statement of diagnostic test:

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Which below statement is not correct:

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Students had attended a blood donor session at the University of Health Science when a new donor arrived. Blood can be classified into 4 groups: O, A, B and AB. The table below shows the number of people in each blood group. What is the probability that the next donor belongs to blood group O?

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If the penalty for missing a case is high (e.g., the disease is fatal and treatment exists, or disease easily spreads) the best diagnostic test is:

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If a negative predictive value was 98%, it means that:

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When data are collected in a statistical study for only a portion or subset of all elements of interest we are using

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A confidence interval estimate is (chose the correct answer):

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In a study of Cambodian people over 65 years of age, it is found that 255 have heart disease and 2302 do not. If a Cambodian over 65 years of age is randomly selected, what is the estimated probability that he or she has heart disease:

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Which below statement is not correct:

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A parameter is a measure which is computed from

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What is the correct statement of sensitivity of a screening test:

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Which below statement is not correct:

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The meaning of reliability of a test is:

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αžŸαŸ’αžαž·αžαž·αžœαž·αž‘αŸ’αž™αžΆ(statistics) αž˜αžΆαž“αž…αŸ‚αž€αž…αŸαž‰αž‡αžΆ

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αž€αžΆαžšαžŸαž·αž€αŸ’αžŸαžΆαž‘αŸ…αž›αžΎαžŸαŸ†αžŽαžΆαž€αž“αž·αžŸαŸ’αžŸαž·αžαž†αŸ’αž“αžΆαŸ†αž‘αžΈ ្Aαž…αŸ†αž“αž½αž“ ៑៑ αž“αžΆαž€αŸ‹αž”αžΆαž“αžšαž€αžƒαžΎαž‰αžαžΆαž“αž·αžŸαŸ’αžŸαž·αžαž”αžΆαž“αž…αŸ†αžŽαžΆαž™αž–αŸαž›αžŸαž·αž€αŸ’αžŸαžΆαžšαž™αŸˆαž–αŸαž› αŸ‘αŸ αŸ αž“αžΆαž‘αžΈαž€αŸ’αž“αž»αž„αŸ‘αžαŸ’αž„αŸƒαž αžΎαž™αž˜αžΆαž“ standard deviation 20 αž“αžΆαž‘αžΈαŸ” αž‚αŸαž…αž„αŸ‹αž’αŸ’αžœαžΎ hypothesis testing αžαžΆαž“αž·αžŸαŸ’αžŸαž·αžαž†αŸ’αž“αžΆαŸ†αž‘αžΈ ្A αž”αžΆαž“αžšαŸ€αž“αžšαž™αŸ‡αž–αŸαž›2αž˜αŸ‰αŸ„αž„αžŠαŸ‚αžšαž¬αž‘αŸ αž αžΎαž™αž”αžΆαž“αžšαž€αžƒαžΎαž‰ P-value = 0.049αŸ” αžαžΎαž‚αŸαž’αžΆαž…αžŸαž“αŸ’αž“αž·αžŠαŸ’αž‹αžΆαž“αž”αžΆαž“αž™αŸ‰αžΆαž„αžŠαžΌαž…αž˜αŸ’αžαŸαž…?

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αž‚αŸ„αž›αž€αžΆαžšαžŽαŸαžŸαŸ†αžšαžΆαž”αŸ‹αž’αŸ’αžœαžΎαž€αžΆαžšαžŸαŸ†αžšαŸαž…αž…αž·αžαŸ’αžαž“αŸ…αž€αŸ’αž“αž»αž„αž€αžΆαžšαž’αŸ’αžœαžΎhypothesis testing αž‚αžΊαžαŸ’αžšαžΌαžœαž–αžΉαž„αž•αŸ’αž“αŸ‚αž€αž›αžΎ

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αž“αŸ…αž€αŸ’αž“αž»αž„ One sided hypothesis testing, αž™αžΎαž„αž’αžΆαž… Reject H0 αžŠαŸ„αž™αž”αŸ’αžšαžΎαž”αŸ’αžšαžΆαžŸαŸ‹ Z ឬ t Distribution

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The time of onset is clearly defined in some diseases, for example:

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αž€αŸ’αž“αž»αž„αž…αŸ†αžŽαŸ„αž˜αž‘αžΆαžšαž€ ៑០០០ αž€αžΎαžαžšαžŸαŸ‹αž˜αžΆαž“αž‘αžΆαžšαž€αžŸαŸ’αž›αžΆαž”αŸ‹ ៀ០ αž“αžΆαž€αŸ‹αž’αžΆαž™αž»αž€αŸ’αžšαŸ„αž˜ ៑ αž†αŸ’αž“αžΆαŸ† αžŸαž»αž…αŸ’αž…αž“αžΆαž€αžšαž“αŸαŸ‡αž”αž‰αŸ’αž‡αžΆαž€αŸ‹αž€αžΆαžšαž‚αžŽαž“αžΆ:

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αž…αŸ†αžŽαž»αž…αž”αŸ’αžšαžœαŸ‰αžΆαž‘αž„αŸ‹ (Point prΓ©valence)

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αž’αŸŠαžΈαžŸαŸ’αžŠαžΌαž€αŸ’αžšαžΆαž˜ (Histogram) αž‚αžΊαž‡αžΆαž€αŸ’αžšαžΆαž αŸ’αžœαž·αž€αž˜αž½αž™:

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αž“αŸ…αž€αŸ’αž“αž»αž„αžαŸαžαŸ’αžαž”αŸ‰αŸƒαž›αž·αž“αž˜αžΆαž“αž”αŸ’αžšαž‡αžΆαž‡αž“ ៦០០០០ αž“αžΆαž€αŸ‹ αž“αŸ…αžŠαžΎαž˜αž†αŸ’αž“αžΆαŸ† αŸ’αŸ αŸ‘αŸ€αŸ” αž‘αžΆαžšαž€αž€αžΎαžαžšαžŸαŸ‹αž€αŸ’αž“αž»αž„αž†αŸ’αž“αžΆαŸ†αž“αŸαŸ‡αž˜αžΆαž“ ្ៀ០០ αž“αžΆαž€αŸ‹αŸ” αž’αžαŸ’αžšαžΆαž‘αžΆαžšαž€αž€αžΎαžαžšαžŸαŸ‹αž€αŸ’αž“αž»αž„αž†αŸ’αž“αžΆαŸ†αž“αŸ„αŸ‡αž€αŸ’αž“αž»αž„αžαŸαžαŸ’αžαž”αŸ‰αŸƒαž›αž·αž“ αž˜αžΆαž“:

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Prevalence is useful:

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To measure risk of death among person in a specific age and sex group. by calculation of:

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All of them are the true answers only one is the false answer. Find the false answer: Defining disease occurrences: the method used to define cases affects the accuracy of frequency measures is:

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Variation in clinical measurement including:

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To measure the risk of death occurring either during pregnancy after completed 28 weeks of gestation or within 1 week after delivery, by calculation of:

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Prevalence is useful in:

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αž“αŸ…αž€αŸ’αž“αž»αž„αžαŸαžαŸ’αžαž”αŸ‰αŸƒαž›αž·αž“αž˜αžΆαž“αž‘αžΆαžšαž€αž€αžΎαžαžšαžŸαŸ‹αž’αžΆαž™αž»αž€αŸ’αžšαŸ„αž˜ ៧ αžαŸ’αž„αŸƒ ៦០ αž“αžΆαž€αŸ‹αž“αž·αž„αž’αžΆαž™αž»αž…αžΆαž”αŸ‹αž–αžΈ ៧ αžαŸ’αž„αŸƒαžŠαž›αŸ‹ ៑ αž†αŸ’αž“αžΆαŸ†αž˜αžΆαž“ αŸ¦αŸ¦αŸ αž“αžΆαž€αŸ‹ αž“αŸ…αž†αŸ’αž“αžΆαŸ† αŸ’αŸ αŸ‘αŸ€αŸ” αž‘αžΆαžšαž€αžŸαŸ’αž›αžΆαž”αŸ‹αž’αžΆαž™αž»αž€αŸ’αžšαŸ„αž˜ ៧ αžαŸ’αž„αŸƒαžŸαŸ’αž›αžΆαž”αŸ‹ ៦ αž“αžΆαž€αŸ‹ αž“αž·αž„ αž…αžΆαž”αŸ‹αž–αžΈαŸ§αžαŸ’αž„αŸƒαžŠαž›αŸ‹αŸ‘αž†αŸ’αž“αžΆαŸ†αžŸαŸ’αž›αžΆαž”αŸ‹ ៦៦ αž“αžΆαž€αŸ‹αŸ” Taux de mortalitΓ© Post PΓ©rinatal, Post Perinatal Mortality Rateαž˜αžΆαž“:

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This formula refers to:

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The numerator of calculation infant mortality rate is:

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The numerator of calculation maternal mortality rate (MMR) is:

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Incidence of disease refers to the number that develop in a population at risk for the disease over a specified period time of:

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αž“αŸ…αž€αŸ’αž“αž»αž„αžαŸαžαŸ’αžαž”αŸ‰αŸƒαž›αž·αž“αž˜αžΆαž“αž”αŸ’αžšαž‡αžΆαž‡αž“ αŸ¦αŸ αŸ αŸ αŸ αž“αžΆαž€αŸ‹ αž“αŸ…αžŠαžΎαž˜αž†αŸ’αž“αžΆαŸ†αŸ’αŸ αŸ‘αŸ€αŸ” αž‘αžΆαžšαž€αž€αžΎαžαžšαžŸαŸ‹αž€αŸ’αž“αž»αž„αž†αŸ’αž“αžΆαŸ†αž“αŸ„αŸ‡αž˜αžΆαž“ αŸ’αŸ€αŸ αŸ αž“αžΆαž€αŸ‹αŸ” αž˜αžšαžŽαŸˆαž—αžΆαž–αž‘αžΌαž‘αŸ…αž˜αžΆαž“ αŸ¦αŸ αŸ αž“αžΆαž€αŸ‹ αž“αž·αž„αž”αŸ’αžš/αž‡αž…αž»αž„αž†αŸ’αž“αžΆαŸ†αž˜αžΆαž“:

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In an epidemic ( or outbreak ) of food poisoning, there were 10 cases of male and 40 cases of female among 120 female and 80 male exposed. Female attack rate is:

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αžƒαŸ’αž›αžΆαžαžΆαž„αž€αŸ’αžšαŸ„αž˜αž“αŸαŸ‡αžŸαž»αž‘αŸ’αž’αžαŸ‚αž‡αžΆαž›αž€αŸ’αžαžŽαŸˆαžšαž”αžŸαŸ‹αžαŸ†αž›αŸƒαž€αžŽαŸ’αžŠαžΆαž› (Median) αž›αžΎαž€αž›αŸ‚αž„αžαŸ‚:

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The population beginning of the year 2000 in Rattanakiri province has 60000 populations (P) and the end of the same year and same place have 70000 populations.All cases of mortality are 200 cases. # Live births = 12000 live births. The mean population in Rattanakiri in year 2000 has:

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αž€αŸ’αž“αž»αž„αžαŸ’αž“αžΆαž€αŸ‹αž˜αž½αž™αž˜αžΆαž“αž“αž·αžŸαž·αŸ’αžŸαžαžŸαžšαž»αž”αž…αŸ†αž“αž½αž“ ៩០ αž“αžΆαž€αŸ‹ αž€αŸ’αž“αž»αž„αž“αŸ„αŸ‡αž˜αžΆαž“αž“αž·αžŸαŸ’αžŸαž·αžαž“αžΆαžšαžΈ ៣០ αž“αžΆαž€αŸ‹αŸ” Ratio αžšαžœαžΆαž„αž“αž·αžŸαŸ’αžŸαž·αžαž”αž»αžšαžŸαž“αž·αž„αž“αžΆαžšαžΈαž‚αžΊαŸ–

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αž…αŸ†αžŽαž»αž…αžŠαŸ‚αž›αž‚αž½αžšαž²αŸ’αž™αž…αž„αž…αžΆαŸ†αž€αŸ’αž“αž»αž„αž€αŸ’αžšαžΆαž αŸ’αžœαž·αž€αž“αŸ„αŸ‡αž‚αžΊ:

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Infant mortality rate is used to measure the:

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αž…αž˜αŸ’αž›αžΎαž™αž‘αžΆαŸ†αž„αž’αžŸαŸ‹αžαžΆαž„αž€αŸ’αžšαŸ„αž˜αž“αŸαŸ‡ αžŸαž»αž‘αŸ’αž’αžαŸ‚αžαŸ’αžšαžΉαž˜αžαŸ’αžšαžΌαžœ αž›αžΎαž€αž›αŸ‚αž„αžαŸ‚αž…αž˜αŸ’αž›αžΎαž™αž˜αž½αž™αžŠαŸ‚αž›αžαž»αžŸαž’αžαŸ’αžšαžΆαž˜αžšαžŽαŸˆαž—αžΆαž–αžšαž½αž˜αž‚αžΊαŸ–

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αž’αžαŸ’αžšαžΆαž˜αžšαžŽαŸˆαž—αžΆαž–αž“αŸƒαž‘αžΆαžšαž€ (Perinatal mortality Rate, Taux de mortalitΓ© PΓ©rinatale) αž‚αžΊαž‡αžΆαž€αžΆαžšαž‚αžŽαž“αžΆαž’αžαŸ’αžšαžΆαž˜αžšαžŽαŸˆαž—αžΆαž– αžŸαŸ†αžŠαŸ…αž‘αŸ…αž›αžΎαž‘αžΆαžšαž€αžŠαŸ‚αž›αž˜αžΆαž“αž’αžΆαž™αž»:

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αž”αŸ’αžšαŸαžœαŸ‰αžΆαž‘αž„αŸ‹ αžαŸ’αžšαžΌαžœαž”αžΆαž“αž‚αžŽαž“αžΆαžŠαžΌαž…αžαž‘αŸ…:

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αž€αŸ’αž“αž»αž„αž…αŸ†αžŽαŸ„αž˜αž‘αžΆαžšαž€ ៑០០០ αž€αžΎαžαžšαž„αžŸαŸ‹ αž˜αžΆαž“αž‘αžΆαžšαž€αžŸαŸ’αž›αžΆαž”αŸ‹ ៦០ αž“αžΆαž€αŸ‹ αž’αžΆαž™αž»αž€αŸ’αžšαŸ„αž˜ ្៨ αžαŸ’αž„αŸƒ αžŸαž»αž…αŸ’αž…αž“αžΆαž€αžšαž“αŸαŸ‡αž”αž‰αŸ’αž‡αžΆαž€αŸ‹ αž€αžΆαžšαž‚αžŽαž“αžΆαŸ–

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The numerator of calculation Crude death rate (CDR) is:

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Period prevalent .Refers to:

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Proportion is the expression:

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An attack rate is:

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αž“αŸ…αž€αŸ’αž“αž»αž„αžαŸαžαŸ’αžαž”αŸ‰αŸƒαž›αž·αž“αž˜αžΆαž“αž‘αžΆαžšαž€αž€αžΎαžαžšαžŸαŸ‹αž’αžΆαž™αž»αž€αŸ’αžšαŸ„αž˜ ៧ αžαŸ’αž„αŸƒ ៦០ αž“αžΆαž€αŸ‹ αž“αŸ…αž†αŸ’αž“αžΆαŸ† αŸ’αŸ αŸ‘αŸ€αŸ” αž‘αžΆαžšαž€αžŸαŸ’αž›αžΆαž”αŸ‹αž’αžΆαž™αž»αž€αŸ’αžšαŸ„αž˜ ៧ αžαŸ’αž„αŸƒαžŸαŸ’αž›αžΆαž”αŸ‹ ៦ αž“αžΆαž€αŸ‹ αž“αž·αž„ αž€αŸ’αžšαŸ„αž˜ αŸ’αŸ¨αžαŸ’αž„αŸƒ αžŸαŸ’αž›αžΆαž”αŸ‹ ៑០ αž“αžΆαž€αŸ‹αŸ” Taux de mortalitΓ© PΓ©rinatal, Perinatal Mortality Rate αž˜αžΆαž“:

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Properties and uses of the mean. The mean is / has:

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A high prevalence may be due to:

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Prevalence of disease refers to the number that develop in a population at risk for the disease over a specified period time of:

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