Causes and Clinical Impact of Loss to Follow-Up in Patients with Proliferative Diabetic Retinopathy

Table 3

Univariate and multivariate logistic regression model evaluating age and procedure used as potential risk factors associated with loss to follow-up in patients with proliferative diabetic retinopathy.

	LTFU n (%)	Univariate model		Multivariate model
		Odds ratio (95% CI)	value	Odds ratio (95% CI)	value
Procedure
IVI	8 (8.9%)	Reference		Reference
PRP	23 (12.78%)	1.50 (0.64–3.51)	0.34	1.47 (0.62–3.47)	0.37
PRP + IVI	45 (22.8%)	3.04 (1.36–6.74)	0.006	3.43 (1.52–7.73)	0.003
Age, years
≥61	14 (9.3%)	Reference		Reference
51–60	34 (17.0%)	1.99 (1.02–3.85)	0.04	2.42 (1.23–4.78)	0.01
≤50	28 (23.9%)	3.05 (1.52–6.12)	0.002	3.53 (1.73–7.19)	0.001

LTFU = loss to follow-up, CI = confidence interval, IVI = intravitreal injection, and PRP = panretinal photocoagulation.