Persistence on prostaglandin ocular hypotensive therapy: an assessment using medication possession and days covered on therapy

Table 2 Patient characteristics

	Bimatoprost	Latanoprost	Travoprost	Total
Number of patients	1464	4994	1415	7873	P value*
	% or mean (SD)
Female	56%	57%	54%	57%	0.129
Age	62.8 (11.8)	63.7 (12.3)	62.0 (11.8)	63.2 (12.1)	< 0.001
Age group 40 to 54	26%	26%	29%	26%	< 0.001
55 to 64	35%	31%	31%	32%
65 to 74	20%	21%	23%	21%
75+	20%	23%	17%	21%
Ocular hypertension^†	36%	44%	39%	41%	< 0.001

*Significance from chi-square test (%) or F test (mean). Comparison is between bimatoprost, latanoprost, and travoprost.
^†Patients were identified with ocular hypertension if they had a medical service with any of these ICD-9 diagnostic codes in the 180 days before/on the index date: 365.00 (preglaucoma), 365.01 (open-angle glaucoma with borderline findings), or 365.04 (ocular hypertension).
ICD-9 = International Classification of Diseases, Ninth Revision; SD = standard deviation.

ISSN: 1471-2415