Table 1.

Characteristics of the InCHIANTI older participants according to polyneuropathy

	Absence of polyneuropathy (n = 915)	Presence of polyneuropathy (n = 57)	p*,#
Erythropoietin (mU/ml) (median [Q1–Q3])	9.9 [7.2–12.8]	8.7 [5.9–11.6]	0.03
Age (years) (mean ± S.D.)	75.25 ± 8.02	75.73 ± 6.87	0.65
Sex, female (n, %)	525 (57.4)	36 (63.2)	0.39
Hemoglobin (g/dl) (mean ± S.D.)	13.72 ± 1.34	13.92 ± 1.23	0.26
Creatinine (mg/dl) (mean ± S.D.)	0.91 ± 0.19	0.91 ± 0.18	0.95
C-reactive protein (µg/ml) (median [Q1–Q3])	2.29 [1.10–5.13]	2.58 [1.30–5.39]	0.41
Free IGF-1 (pg/ml) (median [Q1–Q3])	0.55 [0.36–0.70]	0.56 [0.46–0.75]	0.89
Vitamin B12 (pg/ml) (median [Q1–Q3])	385.0 [283.0–526.0]	407.0 [315.0–570.0]	0.75
Height (m) (mean ± S.D.)	1.60 ± 0.09	1.60 ± 0.10	0.81
BMI (kg/m2) (mean ± S.D.)	27.06 ± 3.99	26.71 ± 4.44	0.56
Diabetic (n, %)	66 (7.2)	9 (15.8)	0.02
Peripheral artery diseases (n, %)	50 (5.5)	2 (3.5)	0.63
Stroke (n, %)	51 (5.6)	3 (5.2)	0.73
Hypertension (n, %)	402 (43.9)	26 (45.6)	0.74

^*p = Age-adjusted.

^#From Age-Adjusted Linear or Multinomial Logistic Regression Models as appropriate.