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Background <p>The health-related quality of life (QoL) assessed by the 12-item Short Form (SF-12) offers a time-efficient alternative to the 36-item version 2 (SF-36 v2). This study aimed to compare the performance of SF-12 and SF-36 v2 among patients with rifampicin-resistant/multidrug-resistant tuberculosis (RR/MDR-TB) in Vietnam.</p> Methods <p>A cross-sectional survey was conducted among RR/MDR-TB patients treated in seven provinces between October 2020 and March 2023. Participants completed the SF-36 v2 questionnaire at enrollment. Physical (PCS) and mental component summary (MCS) scores were compared between SF-12 and SF-36 v2. Linear regression assessed the ability of PCS-12 and MCS-12 to predict PCS-36 and MCS-36. Discriminative ability was assessed via receiver operating characteristic (ROC) curves.</p> Results <p>This study included 565 participants with a median age of 45.4 years (IQR 44.2–46.5) and a male proportion of 71.7%. 64.1% (362/565) had PCS-36 and 88.3% (499/565) had MCS-36 scores well below and below population norms. The mean scores of PCS-12 and MCS-12 were higher than those of PCS-36 (45.1; 95% CI 44.1–46.1 vs. 43.6; 95% CI 43.1–44.1), and MCS-36 (45.2; 95% CI 43.8–46.6 vs. 34.6; 95% CI 33.9–35.4; <i>p</i> &lt; 0.001), respectively. The Intraclass Correlation Coefficients (ICCs) between PCS and MCS scores of SF-12 and SF-36 v2 were 0.6 (95% CI: 0.5–0.6) and 0.5 (95% CI: 0.4–0.5) respectively. The AUC values for comparing the performance of PCS and MCS of two scales were 0.89 and 0.99, respectively. We found the excellent linear correlation between PCS-12 and PCS-36 (<i>r</i> = 0.8; <i>p</i> &lt; 0.001) and between MCS-12 and MCS-36 scores (<i>r</i> = 0.9; <i>p</i> &lt; 0.001).</p> Conclusion <p>SF-12 had moderate correlation to SF-36 v2 for QoL assessment in RR/MDR-TB patients, though it tends to overestimate QoL in older and male individuals.</p>

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Quality of life scores using SF-12 and SF-36v2 questionnaires for patients with multidrug-resistant tuberculosis in Vietnam

  • 期刊论文

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  • 发表日期：

    2026年2月6日

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  • Nguyen Thi Lien Ha,
  • Nguyen Binh Hoa,
  • Manisha Yapa,
  • Nguyen Thu Anh,
  • Qingbin Li,
  • Vu Hai Dang,
  • Greg J. Fox,
  • Vu Quoc Dat

摘要

Background

The health-related quality of life (QoL) assessed by the 12-item Short Form (SF-12) offers a time-efficient alternative to the 36-item version 2 (SF-36 v2). This study aimed to compare the performance of SF-12 and SF-36 v2 among patients with rifampicin-resistant/multidrug-resistant tuberculosis (RR/MDR-TB) in Vietnam.

Methods

A cross-sectional survey was conducted among RR/MDR-TB patients treated in seven provinces between October 2020 and March 2023. Participants completed the SF-36 v2 questionnaire at enrollment. Physical (PCS) and mental component summary (MCS) scores were compared between SF-12 and SF-36 v2. Linear regression assessed the ability of PCS-12 and MCS-12 to predict PCS-36 and MCS-36. Discriminative ability was assessed via receiver operating characteristic (ROC) curves.

Results

This study included 565 participants with a median age of 45.4 years (IQR 44.2–46.5) and a male proportion of 71.7%. 64.1% (362/565) had PCS-36 and 88.3% (499/565) had MCS-36 scores well below and below population norms. The mean scores of PCS-12 and MCS-12 were higher than those of PCS-36 (45.1; 95% CI 44.1–46.1 vs. 43.6; 95% CI 43.1–44.1), and MCS-36 (45.2; 95% CI 43.8–46.6 vs. 34.6; 95% CI 33.9–35.4; p < 0.001), respectively. The Intraclass Correlation Coefficients (ICCs) between PCS and MCS scores of SF-12 and SF-36 v2 were 0.6 (95% CI: 0.5–0.6) and 0.5 (95% CI: 0.4–0.5) respectively. The AUC values for comparing the performance of PCS and MCS of two scales were 0.89 and 0.99, respectively. We found the excellent linear correlation between PCS-12 and PCS-36 (r = 0.8; p < 0.001) and between MCS-12 and MCS-36 scores (r = 0.9; p < 0.001).

Conclusion

SF-12 had moderate correlation to SF-36 v2 for QoL assessment in RR/MDR-TB patients, though it tends to overestimate QoL in older and male individuals.