Laserfiche WebLink
f. Apply a marginalthreshold of 1 - 10 and cellthreshold of 'l - 10 to alltabulations <br />g (0"n<llsuppressed). <br />h. To protect against secondary disclosure, suppress additional cells to ensure the primary suppressed <br />small value cannot be recalculated. <br />i. Suppression of percentages that can be used to recalculate a small number is also required. <br />j. Use aggregation to prevent small numbers but allow reporling of data. Age ranges are a very good <br />example of where aggregation can be used to avoid small numbers but avoid suppressing data (see <br />example below). <br />7. Small Numbers Examples <br />a. Example (Before Applying Standard) <br />b. Example (After Applying Standard) <br />Client Gender County ach Statewide <br />Male -_-1 14 <br />Female 11 15 26 <br />TOTAL 40 <br />lln order to protect the privacy of individuals, cells in this data product that contain small numbers from 1 <br />to 10 are not displayed. <br />The above examples show in order to comply with the standard, analysts must not only suppress direcily <br />those cells where n < 1 1, but also in this case secondary suppression is necessary of ine county and AC] <br />totals in orderto avoid calculation of those cells that contained small numbers. <br />c. Example (Suppression with no aggregation) <br />Age Range County ach Statewide <br />0-3 5 (would be suppressed)8 (would be suppressed)13 (would be <br />suppressed) <br />4-6 7 (would be suppressed)18 25 twould be <br />suppressed) <br />15 23 38 <br />10-"t2 24 33 57 <br />TOTAL 51 (would be suporessedl 82 (would be suppressed)133 <br />d. Example (Using aggregation instead of suppression) <br />Age Ranqe County ach Statewide <br />0-6 12 26 38 <br />7-9 15 23 38 <br />Client Gender County Accountable Community of Health (ACH)Statewide <br />Male 6 I 14 <br />Female 11 15 26 <br />TOTAL 17 23 40 <br />Washington State <br />Health Care Authority Page 23 HCA Contract Na. K5885-1