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Table 3 LLQ Composite and Subscales scores at baseline and follow-up for participants in normal macular health group and the change in scores over this 3-year period (N = 365)

From: Vision-targeted health related quality of life in older adults: patient-reported visibility problems in low luminance activities are more likely to decline than daytime activities

 

Normal macular health at baseline a

LLQ subscales

Baseline score

3-year follow-up score

Difference a

P-value

 

M (SD)

  

Composite

91.4 (8.8)

89.7 (10.3)

1.7

<0.0001

Driving

85.0 (19.0)

81.8 (22.8)

3.1

0.0009

Extreme lighting conditions

87.2 (11.2)

85.0 (13.5)

2.2

0.0005

Mobility

96.0 (7.5)

94.6 (8.9)

1.4

0.0014

Emotional distress

97.6 (6.2)

96.3 (7.9)

1.2

0.0023

General dim-lighting

91.5 (11.4)

90.5 (11.8)

1.0

0.0579

Peripheral vision

93.4 (12.3)

91.4 (14.8)

2.0

0.0065

  1. a Difference is baseline score minus follow-up score