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Table 2 Descriptive statistics of VFQ, NRS and NDI of the VDU and P group at different time points

From: The impact of different lenses on visual and musculoskeletal complaints in VDU workers with work-related neck complaints: a randomized controlled trial

Outcome measure Group Pre Post1 Post2 Post3
VFQ VDU 2.30 ± 1.33 1.87 ± 1.11 1.03 ± 0.66 0.99 ± 1.08
P 2.40 ± 2.03 2.58 ± 1.70 2.15 ± 1.64 1.81 ± 1.42
NRS VDU 3.33 ± 1.50 2.93 ± 1.28 2.13 ± 1.06 1.87 ± 1.41
P 3.15 ± 2.15 4.31 ± 2.02 3.69 ± 1.84 2.92 ± 1.61
NDI VDU 9.69 ± 5.79    6.87 ± 6.98
P 8.64 ± 4.76    7.58 ± 4.06