Evaluating Eye Drop Instillation Technique and Its Determinants in Glaucoma Patients
Table 6
Logistic model of potential predictors of patients’ skill score of using eye drops (first drop score system) (significant items were highlighted in bold).
Simple regression
Multiple regression
β (95% CI)
value
β (95% CI)
value
Demographic characteristics
Mean of age
−0.01 (−0.02, −0.004)
0.002
−0.01 (−0.01, −0.002)
0.010
Male sex
0.14 (−0.05, 3.24)
0.151
Education level
≤middle school
Reference
>middle school
0.15 (−0.04, 0.34)
0.115
Location
Urban
Reference
Rural
0.07 (−0.15, 0.28)
Clinical characteristics
UCVA
Good (≥6/18)
Reference
Intermediate
0.52(−0.27, 0.37)
0.747
−0.01 (−0.32, 0.30)
0.962
Poor (<6/18)
−0.39 (−0.63, −0.15)
0.002
−0.38 (−0.61, −0.14)
0.002
Visual field stage
Early stage
Reference
Medium stage
−0.17 (−0.41, 0.07)
0.168
Late stage
−0.05 (−0.26, 0.17)
0.665
Number of local eye drops
<4
Reference
≥4
0.08 (−0.11, 0.27)
0.415
Duration of using eye drops (y)
<1
Reference
1–5
−0.09 (−0.55, 0.37)
0.695
Knowledge of using eye drops
Interval between each eye drops
5 minutes
Reference
10 minutes
0.07 (−0.32, 0.46)
0.735
30 minutes
−0.43(−1.50, 0.64)
0.428
Press dacryocyst area
Yes
0.53 (0.03, 1.04)
0.037
0.16 (−0.36, 0.68)
0.542
No
Reference
Education/training experience of using eye drops
Having training of using eye drops
Yes
0.37 (0.06, 0.68)
0.020
0.26 (−0.06, 0.58)
0.109
No
Reference
SD: standard deviation; UCVA: uncorrected visual acuity. Use patient better-seeing eye’s UCVA in this item. Use patient better-seeing eye’s visual field in this item. All variables in the simple regression with < 0.05 were included in multiple regression.
