Table 3.

Predictors of loss to follow-up (LTFU) among diabetic patients* (n = 3,953) by logistic regression analysis

Factors	LTFU cases/patients, (%)	OR	95% CI	P value	aOR†	95% CI	P value
Sex (n = 3,953):
Male	430/1,332 (32.3)	1.0			1.0
Female	731/2,621 (27.9)	0.81	0.70 to 0.94	0.004	0.79	0.67 to 0.93	0.005
Age, years (n = 3952):
≥39	118/384 (30.7)	1.0			1.0
40 to 49	242/1,056 (22.9)	0.67	0.52 to 0.87	0.003	0.72	0.54 to 0.98	0.034
50 to 59	389/1,395 (27.9)	0.87	0.68 to 1.11	0.27	1.02	0.77 to 1.36	0.878
≥60	412/1,117 (36.9)	1.32	1.02 to 1.69	0.03	1.54	1.15 to 2.05	0.004
Type of diabetes (n = 3953):
Type 1	20/42 (47.6)	1.0			1.0
Type 2	1,141/3,911 (29.2)	0.45	0.25 to 0.83	0.01	0.50	0.25 to 1.01	0.053
Origin (n = 3952):
District of clinic	460/1,641 (28.0)	1.0			1.0
Other districts	391/1,473 (26.5)	0.93	0.79 to 1.09	0.35	1.01	0.84 to 1.21	0.88
Outside province	310/838 (37.0)	1.51	1.26 to 1.80	<0.001	1.68	1.38 to 2.06	<0.001
Last BMI, kg/m2, (n = 3901):
<23.0	581/1,708 (34.0)	1.0			1.0
≥23.0	547/2,193 (24.9)	0.64	0.56 to 0.74	<0.001	0.70	0.60 to 0.82	<0.001
Last RBG, mg/dl (n = 3659):
<180	330/1,688 (19.6)	1.0			1.0
≥180	621/1,971 (31.5)	1.89	1.62 to 2.21	<0.001	1.81	1.54 to 2.13	<0.001
Last consultation (n = 3927):
Not late	686/2,960 (23.2)	1.0			1.0
Late	474/967 (49.0)	3.19	2.74 to 3.71	<0.001	2.72	2.29 to 3.24	<0.001

*Included are all patients who initiated treatment between March 2002 and February 2008 and who attended at least two consultations.

†All factors with P value < 0.05 in univariate analysis were included in the multivariable regression model. P value for the likelihood ratio test for the model was <0.001.

aOR = adjusted odds ratio; BMI = body mass index; CI = confidence interval; OR = odds ratio; RBG = random blood glucose.