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Table 4 Logistic regression analysis for sarcopenia as a dependent variable

From: Sarcopenia is associated with insomnia in Japanese older adults: a cross-sectional study of data from the Nagasaki Islands study

Independent variable

Univariable analysis

Odds ratio (95% CI)

Multivariable analysis

Odds ratio (95%CI)

Age

 65–68(reference)

1

1

 69–73

2.85 (1.75–4.63)

3.13 (1.86–5.28)

 74–79

3.99 (2.51–6.36)

3.72 (2.23–6.20)

  > 80

9.00 (5.72–14.20)

7.79 (4.63–13.10)

Female (vs. Male)

1.18 (0.90–1.55)

1.11 (0.81–1.51)

BMI

  ≤20 kg/m2

2.85 (2.13–3.82)

3.33 (2.39–4.63)

  20–25 kg/m2(reference)

1

1

  > 25 kg/m2

0.46 (0.30–0.70)

0.46 (0.29–0.71)

IHD (vs. non-IHD)

1.91 (1.28–2.84)

1.49 (0.95–2.34)

Care-related problems

  Appetite loss

3.37 (1.93–5.90)

2.04 (1.04–4.01)

  No hobbies

1.85 (1.35–2.53)

1.77 (1.21–2.57)

 Recent hospitalization

1.68 (1.17–2.42)

1.40 (0.92–2.12)

 Weakening of neighbor relations

1.52 (1.11–2.08)

1.27 (0.88–1.84)

 Visual disturbance

2.18 (1.17–4.07)

1.20 (0.59–2.43)

 Without long-distance walking

2.41 (1.81–3.23)

1.39 (0.97–2.00)

DIMS (vs. non-DIMS)

2.26 (1.72–2.98)

1.56 (1.14–2.13)

Sleep duration

  < 6 h

0.75 (0.36–1.57)

0.95 (0.42–2.14)

 6–7 h

0.80 (0.49–1.30)

0.94 (0.55–1.62)

 7–8 h

1

1

 8–9 h

1.39 (0.98–1.97)

1.11 (0.75–1.64)

  ≥ 9 h

1.77 (1.24–2.53)

1.21 (0.81–1.81)

  1. Abbreviations: BMI body mass index, CI confidence interval, DIS difficulty initiating sleep, DIMS difficulty initiating and/or maintaining sleep, DMS difficulty maintaining sleep, IHD ischemic heart disease, IQR interquartile range