Table 4.

Logistic regression analysis for being prescribed antibiotics

Prescribed antibiotics (yes or no)
	OR	95% CI for OR	P value
Age	1.011	0.998 to 1.024	0.096
Gender	0.898	0.639 to 1.262	0.535
Diabetes	1.718	1.209 to 2.441	0.003
Healing time	1.004	1.002 to 1.006	<0.001
Using the DDSS	0.283	0.106 to 0.757	0.012
Venous ulcer	0.835	0.544 to 1.282	0.409
Arterial ulcer	3.005	1.538 to 5.870	0.001
Pressure ulcer	0.542	0.311 to 0.944	0.031
Neuropathic ulcer	3.855	1.643 to 9.045	0.002
Malignant ulcer	4.016	1.268 to 12.722	0.018
Other unspecified ulcer	1.529	0.915 to 2.555	0.105

Outcome: Being prescribed antibiotics (yes). Younger age, male, not having diabetes, shorter healing time, not using the DDSS and not having the specific ulcer aetiology were chosen as references. Hosmer and Lemeshow’s goodness of fit p value was 0.320. Nagelkerke R² was 0.155. Significant p values are presented in bold.

DDSS, digital decision support system.