Table 3.

Relationships of the subscale and composite scores with demographic characteristics

Scores	Sex	Age	Employment status	Marital status	Education attainment	Household income
General health	0	-	-	0	0	0
General vision	0	0	0	0	0	0
Ocular pain	+	0	0	0	0	0
Near vision activities	0	-	0	-	+	+
Distance vision activities	-	-	0	-	+	+
Social function	0	-	0	-	+	+
Mental health	0	0	0	0	+	0
Role difficulty	0	0	0	0	0	0
Dependence	-	-	0	0	+	+
Color vision	0	-	0	0	+	0
Peripheral vision	0	-	0	0	0	0
Composite score	0	-	0	-	+	+

+, positively correlated, P < 0.05; 0, not significantly correlated; −, negatively correlated, P < 0.05