. Author manuscript; available in PMC: 2015 Dec 1.

Published in final edited form as: Arthritis Care Res (Hoboken). 2014 Dec;66(12):1887–1894. doi: 10.1002/acr.22398

Table 2.

Changes in steps/day and self-report outcomes at week 12 compared to baseline (n=199)

	Baseline Mean (SD)	Wk 12 Mean (SD)	Mean change (SD)	P-values
FIQ total (range 0–100)^†	66.77 (12.65)	54.40 (18.35)	−12.25 (16.21)	<0.0001
FIQ-PI (range 0–10)^†	5.39 (1.58)	3.86 (2.04)	−1.53 (2.07)	<0.0001
BPI pain intensity (range 0–10)^†	5.97 (1.27)	4.90 (1.75)	−1.07 (1.69)	<0.0001
BPI pain interference (range 0–10)^†	6.56 (1.78)	5.07 (2.26)	−1.49 (2.04)	<0.0001
PHQ-8 depression (range 0–24)^†	12.44 (4.94)	9.33 (5.36)	−3.11 (5.01)	<0.0001
SF-36 PCS (range 0–100)^£	40.75 (19.05)	51.38 (21.55)	10.63 (16.70)	<0.0001
Steps/Day	4019 (1530)	3946 (1683)	−95 (1345)	0.0005

Values are the means (standard deviation) unless otherwise indicated.

^†

Higher score indicates a worse state of health.

^£

Lower score indicates a worse state of health.

Abbreviations: FIQ = Fibromyalgia Impact Questionnaire-physical impairment; BPI = Brief Pain Inventory; PHQ-8 = Patient Health Questionnaire-8; SF-36 PCS = Short Form-36 (Physical Component Score).