Psychometric evaluation of the near activity visual questionnaire presbyopia (NAVQ-P) and additional patient-reported outcome items

Journal of Patient-Reported Outcomes

Table 6 Convergent validity of NAVQ-P total score and NVCI and NVS scores with DCNVA and PGI-S scores at Month 2

	Cross-sectional Analysis Population (N = 227)
	DCNVA		PGI-S
Target Score	n	Correlation Coefficient	n	Correlation Coefficient
NAVQ-P Total Score	222	0.220	223	0.770
NVCI Score	226	0.198	227	0.734
NVS Score	226	-0.266	227	-0.676

Cross-sectional analysis population includes participants who have completed the NVCI item, NVS and all items of the NAVQ-P at Month 2; n = Number of participants used to calculate Spearman correlation coefficient (values for both scores); Values represent Spearman correlation coefficients calculated between the PRO target score, DCNVA (logMAR scores) and PGI-S scores