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ORIGINAL RESEARCH

Small, Moderate, and Large Changes, and the Minimum Clinically Important Difference in the University of California, San Diego Shortness of Breath Questionnaire

Nobuyuki HoritaCorrespondence[email protected]

Naoki MiyazawaDepartment of Respiratory Medicine, Saiseikai Yokohamashi Nanbu Hospital, Yokohama, Japan

Satoshi MoritaDepartment of Biostatistics and Epidemiology, Yokohama City University Medical Center, Yokohama, Japan

Ryota KojimaDepartment of Respiratory Medicine, Saiseikai Yokohamashi Nanbu Hospital, Yokohama, Japan

Naoko KimuraDepartment of Respiratory Medicine, Saiseikai Yokohamashi Nanbu Hospital, Yokohama, Japan

Takeshi KanekoRespiratory Disease Center, Yokohama City University Medical Center, Yokohama, Japan

Yoshiaki IshigatsuboDepartment of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, Yokohama, Japan

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Figures & data

Figure 1. Meaningless, small, moderate, and large changes in questionnaire scores.

Figure 2. Flow chart for patient entry. NETT: National Emphysema Treatment Trial. N: Number of patients.

Table 1. Baseline characteristics and longitudinal changes in questionnaire scores

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Figure 3. Distribution chart for ∆SGRQ and ∆SOBQ. The gray bars indicate the cutoff values for ∆SGRQ ± 1 (for anchor average method). The oblique line indicates the linear regression (for anchor linear regression method).

Table 2. Summary of the estimated cutoff values of meaningless, small, moderate, and large changes in Shortness of Breath Questionnaire (SOBQ)

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Table 3. A comparison of the numbers of patients in each category when grouped according to other parameters

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Small, Moderate, and Large Changes, and the Minimum Clinically Important Difference in the University of California, San Diego Shortness of Breath Questionnaire

Table 1. Baseline characteristics and longitudinal changes in questionnaire scores

Table 2. Summary of the estimated cutoff values of meaningless, small, moderate, and large changes in Shortness of Breath Questionnaire (SOBQ)

Table 3. A comparison of the numbers of patients in each category when grouped according to other parameters

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Small, Moderate, and Large Changes, and the Minimum Clinically Important Difference in the University of California, San Diego Shortness of Breath Questionnaire

Figures & data

Table 1. Baseline characteristics and longitudinal changes in questionnaire scores

Table 2. Summary of the estimated cutoff values of meaningless, small, moderate, and large changes in Shortness of Breath Questionnaire (SOBQ)

Table 3. A comparison of the numbers of patients in each category when grouped according to other parameters

Reprints and Corporate Permissions

Academic Permissions

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