Table 2.

Performance of the RF model for ‘intention request’ with the top five variables

		Observed intention
		Positive intention	Negative intention
Predicted intention by RF	Positive intention	132 (43.1%)	30 (9.8%)
	Negative intention	68 (22.2%)	76 (24.8%)

Data in this confusion matrix are presented as the numbers and percentages of observed and predicted respondents to have a positive or negative intention according to RF

Performance metrics: ACC 0.680 (standard deviation, SD 0.116); AUC 0.722 (SD 0.080); SENS 0.815 (SD 0.105), and SPEC 0.525 (SD 0.115)