Table 3 Routine blood laboratory variables used to construct the FI-LAB.

From: Prediction of mortality in Chinese very old people through the frailty index based on routine laboratory data

Standard laboratory variables

Normal range or cutoff

HR (95% CI) for 4-year mortality

P-value

White blood cells (number/L)

Men 4.0–9.2, women 3.7–9.2

1.40 (1.05–1.86)

0.021*

Neutrophil (%)

50–70

1.18 (0.94–1.48)

0.153

PLT (number/L)

100–300

1.02 (0.84–1.25)

0.822

Red blood cells (number/L)

Men 4.1–5.7 women 3.7–5.1

1.19 (0.98–1.46)

0.079

HGB

Men 131–172 women 113–151

1.37 (1.12–1.69)

0.007**

HCT

Men 0.38–0.51 women 0.34–0.45

1.26 (1.03–1.53)

0.023*

MCV

Men 83.9–99.1 women 32.6–99.1

1.01 (0.71–1.45)

0.948

MCH

Men 27.8–33.8 women 26.9–33.3

1.21 (0.92–1.58)

0.168

MCHC

Men 320–355 women 322–362

1.25 (0.98–1.58)

0.074

Blood sugar (mmol/L)

3.9–6.1

0.93 (0.76–1.13)

0.438

TC

<5.18

0.87 (0.63–1.21)

0.399

TG

<1.70

0.97 (0.72–1.29)

0.814

LDL-C

<3.37

1.15 (0.74–1.77)

0.524

HDL-C

≧1.04

0.91 (0.53–1.55)

0.720

TBIL

3.4–17.1

0.85 (0.62–1.16)

0.305

DBIL

<3.4

1.13 (0.91–1.40)

0.262

ALT

<55

0.05 (0.01–4.52)

0.191

Alb

35–55

1.54 (0.73–3.25)

0.258

Glob

9–34

1.03 (0.70–1.54)

0.868

BUN

2.9–8.2

1.14 (0.89–1.47)

0.295

Creatinine

53–140

1.24 (0.84–1.83)

0.289

SUA (μmol/l)

240–490

1.16 (0.91–1.48)

0.225

  1. Abbreviations: HR, hazard risk; CI, confidence interval; HGB, hemoglobin; HCT, hematocrit; MCV, mean corpuscular volume; MCH, mean corpuscular hemoglobin; MCHC, mean corpuscular hemoglobin concentration; TC, total cholesterol; TG, triglycerides; LDL-C, low-density lipoprotein cholesterol; HDL-C, high-density lipoprotein cholesterol; TBil, total bilirubin; DBil, direct bilirubin; ALT, alanine transaminase; Alb: albumin; Glob, globulin; BUN, blood urea nitrogen; SUA, serum uric acid. *P < 0.05, **P < 0.01.
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