Table 2.

PSU threshold, sensitivity, specificity, AUC, standard error, and 95% confidence interval (CI) for nature connectedness and anxiety outcomes (n = 244)

Outcome	Cut-off score	PSUS threshold	Sensitivity	Specificity	LR+	AUC	95% CI	SE	Sig.
Nature connectedness	24	22.5	0.667	0.466	1.250	0.459	0.319–0.599	0.071	0.633
	25	15.5	0.583	0.797	2.879	0.749	0.621–0.876	0.065	0.004
	26	17.5	0.750	0.733	2.806	0.731	0.590–0.872	0.072	0.008
Anxiety	12	21.5	0.464	0.500	0.929	0.436	0.326–0.546	0.056	0.270
	13	21.5	0.636	0.518	1.320	0.533	0.416–0.650	0.060	0.613
	14	21.5	0.481	0.502	0.967	0.444	0.335–0.553	0.055	0.344
	15	24.5	0.455	0.293	0.643	0.284	0.178–0.389	0.054	0.001

Note. PSUS: Problematic Smartphone Use Scale; AUC: area under the curve; SE: standard error.