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Table 2 Characteristics of study sample, constant variables

From: The choice that matters: the relative influence of socioeconomic status indicators on chronic back pain- a longitudinal study

Variable N M SD Min. Max.
Age 92 48.3 6.0 36 60
Income 92 1477 860 476 4666
WS-index 92 10.9 3.3 5.3 18.7
CPG pain intensity baseline 91 58.7 15.5 10 90
CPG pain intensity follow up 66 43.9 25.0 0.0 93.3
CPG disability follow up 66 33.7 27.7 0 96.7