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Purpose <p>Regular and flexible assessments of patients’ physical status remain a significant challenge in clinical care and treatment. Whether measurement items in established Patient-reported outcome (PRO) questionnaires can be used independently to assess physical status remains unclear. This study aimed to evaluate the clinimetric validity of the independent use of a single-item walking measure.</p> Methods <p>Participants were recruited from a prospective cohort of patients undergoing lung surgery. On postoperative days 1 and 2 (POD 1 and 2), the patients’ physical condition was assessed using the Perioperative Symptom Assessment for Lung surgery (PSA-Lung) and the single-item walking measure (SI-walking) derived from these questionnaire. A one-hour washout period separated the assessments. The objective measure of Timed Up and Go Test (TUGT) was performed on POD2.</p> Results <p>Of the 214 patients, 181 and 117 completed PSA-Lung and SI-walking on POD1 and POD2, respectively. The mean SI-walking score was higher than the mean PSA-Lung walking (MI-walking) score (4.44 ± 2.38 vs 3.64 ± 2.66, <i>P</i> &lt; 0.001, Cohen’s <i>d</i> effect size [ES] = 0.26). TUGT was completed by 111 patients with an average time of 15.17 ± 4.01&#xa0;s. TUGT had a greater correlation with SI-walking (R<sub>SI</sub> = 0.61, <i>P</i> &lt; 0.001) than with MI-walking (R<sub>MI</sub> = 0.31, <i>P</i> = 0.001) scores. ES regarding changes in walking function between POD1 and POD2 were higher with SI-walking (5.14 ± 2.37 vs 3.35 ± 1.97, <i>P</i> &lt; 0.001, ES = 0.81) than with MI-walking (4.15 ± 2.77 vs 2.85 ± 2.28, <i>P</i> &lt; 0.001, ES = 0.50). SI-walking (<i>P</i> = 0.002) was better than MI-walking (<i>P</i> = 0.116) in distinguishing hospitalization length.</p> Conclusions <p>The SI-walking scale demonstrates validity for measuring physical status. The independent use of a single-item walking measure from an established PRO questionnaire is valid in patients after thoracic surgery.</p>

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From questionnaires to single items: independent use of a walking measure in patients after thoracic surgery

  • 期刊论文

  • 发表日期：

    2026年1月9日

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  • Jingyu Zhang,
  • Peiyang Mao,
  • Jian Li,
  • Cheng Lei,
  • Xin Tian,
  • Junlin Lei,
  • Xiangyu Tan,
  • Min Li,
  • Wen Zhou,
  • Yuxian Nie,
  • Jia Liao,
  • Wei Dai,
  • Xing Wei,
  • Qiuling Shi

摘要

Purpose

Regular and flexible assessments of patients’ physical status remain a significant challenge in clinical care and treatment. Whether measurement items in established Patient-reported outcome (PRO) questionnaires can be used independently to assess physical status remains unclear. This study aimed to evaluate the clinimetric validity of the independent use of a single-item walking measure.

Methods

Participants were recruited from a prospective cohort of patients undergoing lung surgery. On postoperative days 1 and 2 (POD 1 and 2), the patients’ physical condition was assessed using the Perioperative Symptom Assessment for Lung surgery (PSA-Lung) and the single-item walking measure (SI-walking) derived from these questionnaire. A one-hour washout period separated the assessments. The objective measure of Timed Up and Go Test (TUGT) was performed on POD2.

Results

Of the 214 patients, 181 and 117 completed PSA-Lung and SI-walking on POD1 and POD2, respectively. The mean SI-walking score was higher than the mean PSA-Lung walking (MI-walking) score (4.44 ± 2.38 vs 3.64 ± 2.66, P < 0.001, Cohen’s d effect size [ES] = 0.26). TUGT was completed by 111 patients with an average time of 15.17 ± 4.01 s. TUGT had a greater correlation with SI-walking (RSI = 0.61, P < 0.001) than with MI-walking (RMI = 0.31, P = 0.001) scores. ES regarding changes in walking function between POD1 and POD2 were higher with SI-walking (5.14 ± 2.37 vs 3.35 ± 1.97, P < 0.001, ES = 0.81) than with MI-walking (4.15 ± 2.77 vs 2.85 ± 2.28, P < 0.001, ES = 0.50). SI-walking (P = 0.002) was better than MI-walking (P = 0.116) in distinguishing hospitalization length.

Conclusions

The SI-walking scale demonstrates validity for measuring physical status. The independent use of a single-item walking measure from an established PRO questionnaire is valid in patients after thoracic surgery.