Table 2.

Estimated mean deviation (MD) from a linear mixed regression model*, by adherence and follow-up

	0 Missed (n=142)	≤⅓ Missed (n=112)	⅓-⅔ Missed (n=31)	≥⅔ Missed (n=21)
Years From Enrollment	Estimate (CI)	Estimate (CI)	Estimate (CI)	Estimate (CI)
2	−5.04	−5.28	−5.40	−5.52
	(−5.34, −4.75)	(−5.58, −4.99)	(−5.73, −5.07)	(−5.90, −5.14)
4	−5.20	−5.62	−5.84	−6.05
	(−5.52, −4.88)	(−5.97, −5.28)	(−6.28, −5.40)	(−6.61, −5.49)
6	−5.35	−5.97	−6.28	−6.58
	(−5.73, −4.98)	(−6.40, −5.54)	(−6.87, −5.69)	(−7.36, −5.81)
8	−5.51	−6.31	−6.71	−7.12
	(−5.96, −5.05)	(−6.85, −5.78)	(−7.47, −5.96)	(−8.12, −6.11)
MD Loss	−0.62	−1.42	−1.82	−2.23
0 vs 8	(−1.06, −0.17)	(−1.98, −0.86)	(−2.61, −1.04)	(−3.26, −1.19)
P-value	0.0065	<0.0001	<0.0001	<0.0001

^*For different levels of adherence, the mean deviation (MD) over time from enrollment was estimated using a linear mixed regression model. For this display, the covariates baseline MD and age were set to their mean values, and cataract extraction was set to ‘no’; 95% confidence intervals (CI) are provided.