Product-event combination statistics

For each product-event combination, you can review a summary of statistics presented in a trend graph and a histogram.

The trend graph is a confidence interval graph in which the x-axis represents dates and the y-axis represents EBGM values for the product-event combination. In the line for each time period:

• The point represents the EBGM value.
• The lower end represents the EB05 value.
• The upper end represents the EB95 value.

The histogram that appears below the trend graph shows reporting frequency for the product-event combination. The x-axis represents dates and the y-axis represents counts of cases that contain the product-event combination.

Field descriptions—Statistical score

The statistical score that might appear for each product-event combination includes the following rows:

Field	Description
EB05	A value such that there is approximately a 5% probability that the true Relative Ratio lies below it. The interval from EB05 to EB95 might be considered to be the 90% confidence interval.
EB95	A value such that there is approximately a 5% probability that the true Relative Ratio lies above it. The interval from EB05 to EB95 might be considered to be the 90% confidence interval.
EBGM	Empirical Bayesian Geometric Mean. A more stable estimate than RR; the so-called shrinkage estimate, computed as the geometric mean of the posterior distribution of the true Relative Ratio. For more information, see MGPS computations.
N	Observed number of cases with the combination of items.
PRR	Proportional Reporting Ratio for the combination of a particular product and particular event.
PRR_CHISQ	Chi-square of PRR. For more information, see PRR computations.
ROR05	Lower 5% confidence limit for ROR.
ROR95	Upper 5% confidence limit for ROR. The interval from ROR05 to ROR95 might be considered to be the 90% confidence interval.
ROR	Reporting Odds Ratio. Computed as: ROR = (PRR_A * PRR_D) / (PRR_B * PRR_C) With stratification, ROR is computed as a weighted average of the ROR within each stratum. For more information, see ROR computations.

Field descriptions—Review information for the product-event combination

The review information for the product-event combination includes the following columns:

Field	Description
Date	Date and time when the comment was added. The comments are ordered by the date they were added, with the most recently added comment appearing first.
Created By	Name of the user who added the comment. The user name appears even if the user has been deleted.
Filtered	Yes, if you added the comment when the product-event combination was suppressed. No, if you added a public comment when you were documenting your review, or when you un-suppressed the product-event combination. Empty (blank), for private comments.
Private	If the signal management configuration allows private comments, displays Yes to identify private comments and No to identify public comments.
Comment	The predefined comment added to the combination.
Detailed Comment	The optional free text description added with the comment. This column appears only if the corresponding site option has been set.

Field descriptions—Topic information for the product-event combination

If signal management is integrated with topics, the table also includes the following columns:

Field	Description
Topic Name (ID)	Topic name and ID associated with the product-event combination.
Topic Association	Activity involving the associated topic. Values include Created, Removed or Modified.