Table 2.

Insulin and insulin resistance indices in investigated groups.

	All elderly participants free of diabetesn = 86	ElderlyInsS groupn = 35	ElderlyInsR groupn = 51	Significant difference
Ins 0ʹ [mU/L]	31.6 (17.3–36.2)	15.8 (14.0–22.5)	34.6 (31.9–40.8)	0.000000…
Ins 120ʹ [mU/L]	67.1 (33.6–118.7)	52.2 (23.1–125.3)	81.7 (48.7–112.2)	NS
Mean Ins [mU/L]	46.6 (31.7–71.4)	37.1 (22.3–70.0)	54.6 (39.1–72.9)	0.014
IR	0.31 (0.17–0.35)	0.16 (0.12–0.22)	0.35 (0.32–0.39)	by deff.
HOMA-IR	7.38 (4.44–9.95)	4.34 (3.02–5.77)	8.46 (7.23–11.22)	0.000000…
QUICKI	0.45 (0.42–0.50)	0.50 (0.47–0.55)	0.44 (0.42–0.45)	0.000000…
Matsuda	2.64 (1.90–3.68)	3.68 (3.18–5.65)	2.29 (1.73–2.81)	0.000073

Note: Data are presented as median with interquartile range (lower–upper).

InsS: insulin sensitive group; InsR: insulin resistant group; NS: not significant; Ins 0ʹ: fasting insulin; Ins 120ʹ: insulin concentration at 120 min during oral glucose tolerance test; Mean Ins: mean insulin concentration from the Oral Glucose Tolerance Test; HOMA-IR: homeostasis model assessment for insulin resistance; QUICKI: quantitative insulin sensitivity check index; Matsuda: the insulin sensitivity index obtained from an oral glucose tolerance test; by deff: by definition.