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Table 2 Change in early postoperative physical activity and function from 6 weeks to 3 and 6 months after lumbar spine surgery

From: Early postoperative physical activity and function: a descriptive case series study of 53 patients after lumbar spine surgery

Outcome Variable 6 weeks
Mean (95% CI)
3 months
Mean (95% CI)
6 months
Mean (95% CI)
p-value*
Physical activity
 Wear time (hours/day) 15.2 (14.6; 15.7) 15.0 (14.5; 15.6) 15.2 (14.6; 15.7) 0.81
 Steps/day 3310 (2776; 3844) 3705 (3292; 4119) 3781 (3289; 4273) 0.07
 Time in MVPA (minutes/week) 0 0 0
Physical function
 ODI 34.7 (30.0; 39.4) 26.1 (21.3; 30.9) 21.6 (16.7; 26.4) <  0.05
 SF-12 Physical Health 30.5 (27.6; 33.4) 38.0 (35.0; 40.9) 42.4 (39.4; 45.4) <  0.05
 TUG (s) 11.2 (10.0; 12.4) 10.4 (9.6; 11.3) 9.8 (9.0; 10.7) <  0.05
 10 MW (m/s) 1.04 (0.96; 1.12) 1.12 (1.05; 1.19) 1.19 (1.10; 1.27) <  0.05
  1. *p-value obtained from pooled generalized estimating equations and indicates a statistical difference between at least two of the time points
  2. Abbreviations: 10 MW 10-Meter Walk; m/s Meters per second; MVPA Moderate to vigorous physical activity; ODI Oswestry Disability Index; s Seconds; SF-12 12-Item Short-Form Health Survey; TUG Timed Up and Go
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