Before any trend is read, the PU520 Unit 6 surveillance report example establishes what a composite county's ten-year chlamydia series counts and what it misses. Searches like "pu 520 unit 6 assignment example", "pu520 unit 6 sample" and "pu520 unit 6 example" land here.
What a finished PU520 Unit 6 surveillance report looks like
The report is compact, about four pages with two figures and one table. Its first figure plots the annual reported rate per 100,000 across ten years, with separate lines for women and men and a vertical marker at year six, when electronic laboratory reporting began. The reported rate jumps 18 percent that year and then resumes its earlier slope. A second figure shows rates by five-year age group for the most recent complete year, peaking among women aged 20 to 24. The table summarizes the system itself: who reports, what triggers a case report, which tests count, and how long reports take to arrive. The discussion reads each feature of the series against that table, then states which changes probably reflect transmission, which reflect testing, and which cannot yet be separated.
How a PU520 Unit 6 example is structured
The report treats the surveillance system as its first subject and the disease as its second, which is the reversal the unit is built on. A description of the system comes before any trend is interpreted, because a reported case is a positive laboratory test in someone who was tested, and a reader who forgets that will mistake screening policy for epidemiology. The year-six step is examined next, since a sudden jump coinciding with a reporting change is the clearest artifact in the series. Sex differences follow: women are screened routinely in many clinical settings and men mostly when symptomatic, so a higher rate among women partly measures who is tested. The age figure is kept for the end, where the example argues it reflects both real concentration of risk and targeted screening. CDC's guidelines for evaluating surveillance systems supply the attributes used throughout.
The system described first
Reporting sources, the case definition in use, laboratory tests that trigger a report, and the lag between diagnosis and receipt. The table fits on half a page and is referred to in every later section.
The year-six step
Electronic laboratory reporting captured results that paper reports had missed. The example calculates the step at 18 percent and shows the slope before and after it running nearly parallel.
Women, men and who gets tested
Routine screening of young women and symptom-driven testing of men produce a rate gap that partly reflects testing volume. The report says so without claiming the true gap is zero.
The age curve
Rates peak among women aged 20 to 24. The report reads this as a real concentration of risk overlaid on screening recommendations aimed at the same group.
Attributes rated
Sensitivity, timeliness, representativeness and data quality each receive a sentence and a judgment, following the CDC evaluation guidelines. Completeness of race and ethnicity fields is flagged as poor.
What the series can and cannot say
Reported cases are rising; infections may be rising more slowly. The closing paragraph recommends pairing case reports with testing volume so that future readers can compute positivity.
Where marks go in PU520 Unit 6
Surveillance report rubrics tend to divide credit among describing the data source accurately, interpreting trends correctly, and recognizing limitations. The example earns the first row by describing the system in concrete terms instead of calling the data reliable. Trend marks depend on separating artifact from change, and the year-six step is where many submissions lose them, reading a reporting improvement as an epidemic. Limitation marks go to specific weaknesses tied to specific features of the series, not a closing paragraph about underreporting in general. Deductions also follow case counts compared across years without conversion to rates, a most recent year treated as complete while late reports are still arriving, and conclusions about infection drawn from diagnosed cases alone. Figures lose points when axes lack units or the reporting change goes unmarked.
Get a PU520 Unit 6 example written to your instructions
Identify the series your PU520 Unit 6 report examines, whether a notifiable disease, a syndromic feed or a registry, and attach the data or its source with the prompt and rubric. A free first custom sample, ready in 24-48 hours, describes that system before reading its trend and marks every artifact it finds.
PU520 Unit 6 questions, answered
Where does a surveillance report find information about the system itself?
Most state and county health departments publish technical notes alongside their disease reports, covering case definitions, reporting requirements and changes over time. The national notifiable disease system posts case definitions by year. The example cites a composite county's technical notes; a report on real data cites the actual document, since definition changes often explain jumps in a series.
Is a rising reported rate ever just a rising rate?
Sometimes, and the report should say when it is. If testing volume, case definitions and reporting sources stayed stable while cases rose, the simplest reading is more disease. The example cannot reach that conclusion for the whole decade because of the year-six change, but it treats the steady slope on either side of the step as a probable real increase.
Does the report need to calculate positivity?
Only if testing counts are available, and in many classroom datasets they are not. Where they are, positivity helps separate changes in testing from changes in infection, because more tests with a stable percent positive suggests broader screening. The example recommends collecting testing volume precisely because its composite county did not report it.