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. Author manuscript; available in PMC: 2018 Jun 15.
Published in final edited form as: Spine (Phila Pa 1976). 2017 Jun 15;42(12):921–929. doi: 10.1097/BRS.0000000000001965

Table 2.

Descriptive Statistics for the 3 measures

SF36 PFCAT ODI
N N (Valid) 1180 1239 1115
N (Missing) 427 368 492
Mean 39.65 38.05 38.58
Median 35.00 38.00 38.00
Standard deviation 28.10 8.21 19.78
Minimum 0 15.40 0
Maximum 100 73.35 91
Percentiles 25 15.00 32.55 24.00
50 35.00 38.00 38.00
75 60.00 42.63 53.00