Table 5 Cox proportional hazard model analysis of the associations between the FMI, FFMI, SMMI, VFAI, and all-cause mortality by age.

From: Effects of age and gender on body composition indices as predictors of mortality in middle-aged and old people

 

Age < 65 (N = 771)

Age >  = 65 (N = 428)

Gender (ref. Female)

7.00 (1.48–33.01)*

4.87 (0.87–27.14)

6.13 (1.37–27.43)*

2.55 (1.28–5.09)*

3.23 (1.57–6.64)*

2.58 (1.28–5.17)*

SES (ref. Low)

0.71 (0.22–2.34)

0.72 (0.22–2.38)

0.46 (0.15–1.44)

0.93 (0.50–1.72)

0.86 (0.46–1.61)

0.71 (0.40–1.27)

CCI

1.44 (1.02–2.04)*

1.42 (1.01–1.99)*

1.33 (0.99–1.79)

1.14 (1.00–1.29)*

1.12 (0.99–1.27)

1.17 (1.04–1.31)*

Smoking (ref. No)

2.18 (0.55–8.73)

2.04 (0.52–8.00)

1.15 (0.33–3.94)

1.06 (0.59–1.89)

1.19 (0.67–2.11)

1.96 (1.12–3.41)

Alcohol consumption (ref. No)

1.00 (0.26–3.78)

0.98 (0.25–3.82)

0.86 (0.24–3.09)

1.40 (0.74–2.64)

1.21 (0.63–2.32)

1.42 (0.75–2.67)

Habitual exercise (ref. No)

0.56 (0.14–2.20)

0.66 (0.18–2.45)

0.72 (0.21–2.53)

0.96 (0.55–1.69)

0.93 (0.53–1.63)

1.05 (0.61–1.81)

FMI

1.16 (0.97–1.37)

–

1.08 (0.91–1.27)

1.08 (0.97–1.19)

–

1.03 (0.94–1.13)

FFMI

0.77 (0.56–1.07)

–

–

0.75 (0.64–0.87)**

–

–

SMMI

–

0.77 (0.43–1.37)

0.79 (0.49–1.28)

–

0.56 (0.42–0.75)**

0.52 (0.39–0.69)**

VFAI

–

1.02 (0.98–1.07)

–

–

1.02 (1.00–1.05)

–

  1. Data was represented as: HR (95%CI).
  2. SES: socioeconomic status; CCI: Charlson comorbidity index; FMI: fat mass index.
  3. FFMI: fat free mass index; SMMI: skeletal muscle mass index, and VFAI: visceral fat area index.
  4. *: p < .05; **: p < .001.
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