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Table 2 Power estimates for low back pain episode specific outcomes

From: Rationale, design, and protocol for the prevention of low back pain in the military (POLM) trial (NCT00373009)

Measure of LBP severity Traditional program Combined program Power (16 companies) Power (12 companies)
FABQ (physical activity) 13.5 (sd = 7.0) 10.1 (sd = 5.9) 100% 100%
FABQ (work) 12.3 (sd = 12.3) 9.7 (sd = 10.2) 86% 65%
ODQ 15.5 (sd = 17.9) 11.9 (sd = 10.0) 92% 77%
  1. FABQ, Fear-avoidance beliefs questionnaire; ODQ, Oswestry disability questionnaire