Table 3.

 Demographic data at the time of surgery for deceased subjects, subjects not responding to the questionnaire, and subjects included in the final analysis

	Subjects			p Value*
	Dead	Not responding	Included
No	92	78	445
Women (%)	56.5	55.7	65.8
Mean age (years)	81.1	77.6	74.7
VA, surgery eye (median)	0.2	0.1	0.4
VA, better eye (median)	0.6	0.6	0.7
Ocular co-morbidity (%)	65.2	48.1	38.2
Second eye surgery (%)	39.1	29.1	35.1
Total DS† (median (mean))	13 (14.1)	11 (12.2)	12 (13.1)	0.319

*Calculated using the Kruskal-Wallis test.

†With a possible score range of 7–34.

DS, disability score.