Table 2.

Overall agreement between measurements. UVR: ultraviolet radiation.

Measurement		Sun exposure, n		Cohen kappa coefficient score (95% CI)
		Yes	No
Did the participant report sun exposure between 8am to 4pm (yes/no, n=16)				0.83 (0.64-1.00)
	UVR diary app	98	14
	UVR dosimetera,b	95	15
Did the participant report sun exposure between 8am to 4pm (yes/no, n=19)				0.64 (0.44-0.84)
	UVR diary app	114	19
	Paper sun diary	117	16
Did the participant report sunscreen use (yes/no, n=19)				0.97 (0.93-1.00)
	UVR diary app	55	78
	Paper sun diary	57	76

^a“Yes” defined by a dose of UVR detected above 0.05 standard erythemal dose, between 8am to 4pm.

^bMissing data due to dosimeter not being worn (n=2 days; 2 participants forgot to wear their dosimeter on 1 day of their intervention).