Relationship Between Lower Extremity Muscle Strength and All-Cause Mortality in Japanese Patients Undergoing Dialysis

Ryota Matsuzawa; Atsuhiko Matsunaga; Guoqin Wang; Shuhei Yamamoto; Toshiki Kutsuna; Akira Ishii; Yoshifumi Abe; Kei Yoneki; Atsushi Yoshida; Naonobu Takahira

doi:10.2522/ptj.20130270

Figures

Figure 1.

Flow diagram of the participant selection and exclusion process.

Figure 3.

Kaplan-Meier analysis of survival for 190 patients undergoing hemodialysis. Participants with knee extensor strength above the median value of 40% (thick dark line) at baseline had significantly better survival than those with a lower value (dotted line) (P=.003 by log-rank test).

Tables

Table 1.

Patient Characteristics, Lower Extremity Muscle Strength, and Physical Performance at Baseline^{^a}

↵^a Values are expressed as median (25th percentile, 75th percentile) or number (percentage of total).
^b History of coronary disease, congestive heart failure, myocardial infarction, peripheral vascular disease, or other cardiac disease.

Table 2.

Baseline Characteristics by Knee Extensor Strength (<40% or ≥40%)^{^a}

↵^a Values are expressed as median (25th percentile, 75th percentile) or number (percentage of total).
^b History of coronary disease, congestive heart failure, myocardial infarction, peripheral vascular disease, or other cardiac disease.

Table 3.

Univariate and Multivariate Cox Models for the Effects of Lower Extremity Muscle Strength on Survival^{^a}

↵^a Analyses were performed using a Cox proportional hazards regression model. HR=hazard ratio, 95% CI=95% confidence interval.
^b Unadjusted by clinicopathological factors of survival.
^c Adjusted by age, sex, body mass index, time on hemodialysis, comorbidity score, and levels of serum albumin and C-reactive protein.
^d Adjusted by applying a propensity score, which is a conditional probability of knee extensor strength determined by other clinicopathological factors.

Vol 94 Issue 7 Table of Contents

Issue highlights

Relationship Between Lower Extremity Muscle Strength and All-Cause Mortality in Japanese Patients Undergoing Dialysis

Ryota Matsuzawa, Atsuhiko Matsunaga, Guoqin Wang, Shuhei Yamamoto, Toshiki Kutsuna, Akira Ishii, Yoshifumi Abe, Kei Yoneki, Atsushi Yoshida, Naonobu Takahira

Physical Therapy Jul 2014, 94 (7) 947-956; DOI: 10.2522/ptj.20130270