Table 3. Adjusteda odds of RP subjects (n=36) experiencing photopsias at a test session.

	1-point score increase			3-point score increase
	OR	95% CI	P-value	OR	95% CI	P-value
Perceived Stress Scale (PSS)	1.05	(1.004–1.10)	0.048b	1.16	(1.01–1.33)	0.048b
Positive Mood (PANAS)	0.94	(0.90–0.98)	0.004b	0.83	(0.73–0.94)	0.004b
Negative Mood (PANAS)	1.00	(0.95–1.06)	0.99	1.00	(0.86–1.19)	0.99
Epworth Sleepiness Scale (ESS)	1.01	(0.95–1.08)	0.72	1.04	(0.86–1.26)	0.72
Stanford Sleepiness Scale (SSS)	1.00	(0.80–1.26)	0.98	1.01	(0.51–2.0)	0.98
Dim light exposure (vs medium or bright)	0.73	(0.41–1.28)	0.27
Bright light exposure (vs medium or dim)	0.76	(0.37–1.58)	0.47

^aAdjusted model includes age and gender.

^bStatistically significant (P<0.05).