Table 5 Factors affecting the intensity of QI activities: results of stepwise selection
|  | β | S.E | p-value |
|---|---|---|---|
Intensity of QI activities of competitors in the previous period | 0.91 | 0.04 | <.0001 |
Length of stay in the previous period | 0.04 | 0.02 | 0.0102 |
Number of outpatients in the previous period | <0.0001 | <0.0001 | 0.0129 |
Period 1 | 1.54 | 0.17 | <.0001 |
Period 2 | 2.02 | 0.25 | <.0001 |
Period 3 | 3.46 | 0.03 | <.0001 |