Table 6 Cox proportional hazard model analysis of the associations between the FMI, FFMI, SMMI, VFAI, and all-cause mortality by gender.

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

 

Female (N = 676)

Male (N = 523)

Age

1.08 (1.04–1.13)**

1.04 (0.99–1.10)

1.12 (1.08–1.17)**

1.06 (1.03–1.09)**

1.07 (1.03–1.11)*

1.07 (1.04–1.11)**

SES (ref. Low)

0.39 (0.09–1.71)

0.41 (0.09–1.80)

0.28 (0.07–1.16)

0.86 (0.45–1.61)

0.78 (0.41–1.47)

0.68 (0.38–1.22)

CCI

1.05 (0.85–1.31)

1.09 (0.87–1.36)

1.17 (0.94–1.45)

1.20 (1.04–1.39)*

1.18 (1.03–1.36)*

1.16 (1.02–1.31)*

Smoking (ref. No)

2.30 (0.29–18.07)

2.43 (0.31–19.02)

4.05 (0.54–30.49)

0.95 (0.55–1.64)

1.02 (0.59–1.75)

1.52 (0.91–2.55)

Alcohol consumption (ref. No)

–

–

–

1.63 (0.90–2.95)

1.47 (0.80–2.70)

1.49 (0.83–2.67)

Habitual exercise (ref. No)

0.79 (0.30–2.08)

0.88 (0.34–2.29)

0.64 (0.25–1.66)

0.78 (0.41–1.50)

0.80 (0.42–1.52)

1.06 (0.58–1.95)

FMI

1.23 (1.08–1.40)*

–

1.15 (1.02–1.30)*

0.95 (0.83–1.08)

–

0.91 (0.81–1.03)

FFMI

0.71 (0.54–0.93)*

–

–

0.82 (0.70–0.97)*

–

–

SMMI

–

0.62 (0.39–0.99)*

0.64 (0.38–1.06)

–

0.72 (0.52–0.99)*

0.68 (0.50–0.91)*

VFAI

–

1.05 (1.01–1.09)*

–

–

0.98 (0.95–1.02)

–

  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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