A modified oral sugar test for evaluation of insulin and glucose dynamics in horses

Table 4 Calculated variables and measures of repeatability for the oral sugar test (OST) in 15 healthy horses (7 Shetland ponies, 8 Icelandic horses)

	Test 1	Test 2	P value	Mean CV (%)	ICC	RC
AUC_GLU (mmol/L × min)	1161 ± 171	1153 ± 116	0.823	6.7	0.79	237.7
AUC_INS (ng/L × min)	30,579 ± 14,276	31,706 ± 15,526	0.623	16.9	0.91	16,556.4
ISI_COMP	2.7 ± 1.5	2.8 ± 1.6	0.912	17.3	0.85	2.1
Peak_INS (ng/L)	309 ± 190	308 ± 153	0.976	18.3	0.83	255.5
T-peak_INS (min)	66 ± 26	74 ± 34	0.334	18.5	0.64	60.7

Data are presented as mean ± standard deviation (SD)
AUC _GLU area under the curve for glucose; AUC _INS area under the curve for insulin; ISI _COMP composite whole-body insulin sensitivity index; Peak _INS peak concentration for insulin; T-peak _INS time to peak concentration for insulin; mean CV mean coefficient of variation; ICC intraclass correlation coefficient; RC repeatability coefficient

ISSN: 1751-0147