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. Author manuscript; available in PMC: 2025 Sep 23.
Published in final edited form as: J Am Geriatr Soc. 2025 Sep 7;73(11):3387–3395. doi: 10.1111/jgs.70095

Table 3. Physical Performance and Patient-Reported Outcomes Before and After Multi-Component Prehabilitation Program.

Measures N Mean (SD) Mean differencea
(95% CI)
Clinically meaningful
improvement
n (%)b
Physical performance
Gait speed, m/s
  Baseline 28 1.2 (0.3) Reference Reference
  Post-prehabilitation 25 1.4 (0.3) 0.19 (0.0, 0.4) 16 (64.0)
Chair stands, seconds
  Baseline 28 17.4 (7.5) Reference Reference
  Post-prehabilitation 25 13.9 (5.3) −3.44 (−6.9, 0.0) 12 (48.0)
Dominant handgrip strength, kg
  Baseline 28 28.3 (7.2) Reference Reference
  Post-prehabilitation 25 29.9 (6.5) 1.59 (−2.1, 5.3) 4 (16.0)
PROMIS-29 Profile c
Physical function
  Baseline 28 43.6 (6.8) Reference Reference
  Post-prehabilitation 25 44.1 (7.1) 1.5 (0.0, 3.0) 8 (32.0)
  Postoperative 30 days 21 45.6 (11.6) 2.9 (1.5, 4.4) 8 (38.2)
  Postoperative 90 days 22 48.0 (8.2) 4.4 (3.0, 5.9) 13 (59.1)
Anxiety
  Baseline 28 49.5 (8.6) Reference Reference
  Post-prehabilitation 25 49.0 (9.4) −2.1 (−3.6, −0.6) 7 (28.0)
  Postoperative 30 days 21 43.6 (8.6) −4.2 (−5.7, −2.8) 13 (61.9)
  Postoperative 90 days 22 44.2 (6.4) −6.4 (−7.8, −4.9) 12 (54.5)
Depression
  Baseline 28 44.7 (5.9) Reference Reference
  Post-prehabilitation 25 45.5 (6.5) −0.9 (−2.0, 0.2) 6 (24.0)
  Postoperative 30 days 21 42.6 (6.5) −1.7 (−2.8, −0.6) 10 (47.6)
  Postoperative 90 days 22 42.7 (5.7) −2.6 (−3.7, −1.5) 10 (45.5)
Fatigue
  Baseline 28 51.7 (9.7) Reference Reference
  Post-prehabilitation 25 50.1 (8.1) −1.6 (−3.1, −0.1) 9 (36.0)
  Postoperative 30 days 21 49.0 (8.9) −3.2 (−4.7, −1.7) 10 (47.6)
  Postoperative 90 days 22 46.7 (7.9) −4.8 (−6.3, −3.3) 12 (54.5)
Sleep disturbance
  Baseline 28 45.8 (10.0) Reference Reference
  Post-prehabilitation 25 46.2 (9.5) −1.0 (−2.7, 0.7) 4 (16.0)
  Postoperative 30 days 21 46.1 (9.6) −2.0 (−3.7, −0.3) 5 (23.8)
  Postoperative 90 days 22 42.3 (9.6) −3.0 (−4.7, −1.3) 9 (41.0)
Participation in social roles
  Baseline 28 53.8 (10.7) Reference Reference
  Post-prehabilitation 25 51.9 (9.2) 0.5 (−1.3, 2.4) 6 (24.0)
  Postoperative 30 days 21 53.8 (10.5) 1.1 (−0.7, 2.9) 7 (33.3)
  Postoperative 90 days 22 55.2 (10.9) 1.6 (0.2, 3.5) 7 (32.0)
Pain interference
  Baseline 28 49.5 (10.1) Reference Reference
  Post-prehabilitation 25 50.0 (8.8) −2.0 (−3.6, −0.5) 4 (16.0)
  Postoperative 30 days 21 46.3 (9.0) −4.1 (−5.6, −2.5) 6 (28.6)
  Postoperative 90 days 22 44.7 (6.5) −6.1 (−7.7, −4.5) 8 (36.4)
Global pain
  Baseline 28 2.6 (2.6) Reference Reference
  Post-prehabilitation 25 2.2 (2.1) −0.5 (−0.9, −0.1) 8 (32.0)
  Postoperative 30 days 21 1.5 (2.0) −1.0 (−1.3, −0.6) 10 (47.6)
  Postoperative 90 days 22 1.2 (1.7) −1.4 (−1.8, −1.1) 10 (45.5)

Abbreviations: PROMIS, Patient-Reported Outcomes Measurement Information System.

a

The mean differences represent least squares means estimated from linear mixed effects models.

b

The clinically meaningful improvement was defined as 0.1 m/s for gait speed, 3 seconds for 5-chair stand time, 2.7 kg for dominant handgrip strength, 3 points for all PROMIS measures, and 1 point for global pain score.

c

PROMIS scores are reported in T-scores with a mean of 50 points and a standard deviation of 10 points. Higher scores indicate a more desirable health state for physical function and participation in social roles, whereas lower scores indicate a more desirable health status in the other domains. The global pain score ranged from 0 to 10.