Table 3.

Correlation analysis of islet autoantibodies in elderly type 2 diabetes.

	IAA (n = 144)	ICA (n = 30)	GADA (n = 32)
Age (years)
r	−0.044	−0.007	−0.058
p	0.304	0.876	0.179
Gender (male/female)
r	−0.012	0.009	−0.007
p	0.775	0.843	0.873
Duration of diabetes (years)
r	0.144	0.004	−0.070
p	0.001	0.930	0.105
BMI (kg/m2)
r	0.102	−0.005	−0.109
p	0.019	0.914	0.011
HbA1c (%)
r	0.002	−0.055	−0.025
p	0.963	0.203	0.566
Fasting blood glucose (mmol/l)
r	−0.034	−0.034	−0.097
p	0.427	0.438	0.024
Fasting C peptide (μg/l)
r	−0.061	0.018	−0.120
p	0.161	0.670	0.005
postprandial C peptide (μg/l)
r	−0.103	0.050	−0.077
p	0.020	0.264	0.081
hs-CRP ≥ 3.25 (mg/l)
r	−0.038	0.142	−0.042
p	0.461	0.005	0.406
Insulin treatment
r	0.299	−0.006	0.039
p	<0.0001	0.891	0.366

Shown are r and p values from Spearman analysis. A p-value of <0.05 was considered as statistical significance. Significant correlations are in bold.

IAA, insulin autoantibodies; ICA, islet cell cytoplasmic autoantibodies; GADA, glutamic acid decarboxylase autoantibodies; BMI, body mass index; HbA1c, hemoglobin A1c; hs-CRP, high-sensitive C-reactive protein.