Table 2—

Sample characteristic across FPG categories in Chinese adults (n = 2,849)

FPG (mmol/l)
P
<5.65.6–6.06.1–7.0>7.0
Food and nutrients intake (means ± SE)
    Energy (kcal)*2,366 ± 132,193 ± 672,253 ± 762,160 ± 77<0.001
    Protein (g)*72.3 ± 0.375.3 ± 1.574.9 ± 1.777.0 ± 1.70.005
    Fat (g)*80.2 ± 0.583.4 ± 2.686.8 ± 3.090.4 ± 3.0<0.001
    Carbohydrate (g)*325 ± 1319 ± 6309 ± 7301 ± 70.001
    Iron (mg)25.5 ± 0.227.5 ± 0.826.1 ± 1.027.9 ± 1.00.009
    Alcohol (g)1.9 ± 0.11.4 ± 0.51.7 ± 0.61.4 ± 0.60.679
Central obesity (%)28.436.838.551.6<0.001
Manual job (%)*53.148.245.133.10.002
Hemoglobin (g/dl) (means ± SD)
    Men14.3 ± 1.714.5 ± 1.814.5 ± 1.814.7 ± 1.90.372
    Women12.6 ± 1.512.7 ± 1.312.9 ± 1.813.4 ± 1.20.017
    All13.4 ± 1.813.5 ± 1.813.7 ± 2.014.1 ± 1.70.008
Anemia (%)
    Men18.617.814.315.40.418
    Women32.623.021.115.00.002
    All26.220.817.515.20.003
Hemoglobin, fourth quartile (%)
    Men24.127.334.138.50.013
    Women24.219.734.245.00.005
    All24.222.934.241.8<0.001
Serum ferritin (μg/l) (means ± SD)§
    Men130.7 ± 87.9116.0 ± 79.3160.6 ± 125.6155.5 ± 113.10.144
    Women67.1 ± 67.791.9 ± 64.596.3 ± 80.0158.0 ± 123.8<0.001
    All96.2 ± 83.9102.1 ± 71.8129.7 ± 110.3156.8 ± 117.8<0.001
Serum ferritin, fourth quartile (%)
    Men24.322.231.736.80.062
    Women22.644.336.864.1<0.001
    All23.434.934.250.6<0.001
  • *

    * ANCOVA, age-adjusted.

  • ANCOVA, energy- and age-adjusted.

  • ANCOVA, age-adjusted. Central obesity defined as waist circumference: men ≥90 cm, women ≥80 cm.

  • §

    § Not homogeneity; Welch adjustment was used.