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. 2020 Sep 17;22(9):e18284. doi: 10.2196/18284

Table 2.

Summary statistics (visual analog scale measurements) for adults.

Variable First measure Second measure
eVASa pVASb eVAS pVAS
Number 62 62 62 62
Mean value 1.738387 1.690323 1.819839 1.759677
SD value 1.550611 1.571723 1.748486 1.743415
P50c 1.245 1.100 1.265 1.300
Minimum value 0.05 0.00 0.00 0.00
Maximum value 7.91 8.10 8.26 8.50

aeVAS: electronic visual analog scale.

bpVAS: paper visual analog scale.

cP50: middle estimate.