### Light protocol

The following instructions apply to the Light protocol only. In the Light protocol, the form has an additional mandatory field, Total number of patients in ward, and a button to enter the denominator data by consultant/patient specialty. The sum of the consultant/patient specialty denominators should be equal to the field Total number of patients in ward. This is verified during the data quality check, not during data entry.

The ward PPS data are entered in the Ward PPS data Form W tab, the fields in which are described in Table 19. Mandatory fields are indicated by a red asterisk *. Required fields are indicated by a black asterisk *.

1. Enter the total number of included patients in ward, i.e. the denominator data in the Total number of patients in ward field.

2. Click Enter denominator data by specialty to enter denominator information separately for consultant(s)/patient speciality(s) within that same ward.

The Light: consultant/patient speciality denominator data form opens.

Warning: In the Light protocol, denominator data by ward AND by consultant/patient specialty are mandatory. If the detailed denominator data by consultant/patient specialty are not known, enter at least one record with the total number of patients (using the unit specialty instead). Also make sure that the list of consultant/patient specialties entered in this form includes all the consultant/patient specialties that are used in the patient/AM/HAI form afterwards (this is verified by the data quality check before data export as well).

3. Click the Add item icon or press Ctrl+N to open the form for editing.

4. For each ward (unit) included in the PPS, choose the Consultant/patient specialty from the drop-down list and enter the Number of patients of the selected specialty in that ward.

Repeat for each different specialty within that ward.

5. Finally, you can see the total number of patients entered for that ward in the Search list tab. Click Refresh to ensure that all recent data is included in this list. Remember that the sum of the consultant/patient specialty denominators should be equal to the field Total number of patients in ward.

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