Table 5.

Comparison of intravenous glucose tolerance test-related indexes among all groups

Group	LnIp/I0	Ln AIR0′~10′	LnAUCins-IVGTT
Hyperthyroidism groups
TNGT	3.11 ± 0.78†,‡,§,||,¶	4.59 ± 0.61‡,||,¶	6.91 ± 0.57†,‡,§,||,¶
TIGR	2.67 ± 0.88*,‡,¶	4.15 ± 0.75‡,¶	6.50 ± 0.71*,‡,¶
TDM	1.50 ± 0.96*,†,§,||,¶	2.78 ± 1.47*,†,§,||,¶	5.61 ± 0.97*,†,§,||,¶
Control groups
NGT	2.60 ± 0.66*,‡,¶	4.16 ± 0.75‡,¶	6.53 ± 0.70*,‡,||,¶
IGR	2.26 ± 0.83*,‡,¶	3.63 ± 0.88*,‡,¶	6.11 ± 0.74*,‡,§,¶
DM	0.84 ± 0.56*,†,‡,§,||	1.03 ± 0.72*,†,‡,§,||	4.58 ± 0.64*,†,‡,§,||
F	34.390	44.564	42.017
P	0.000	0.000	0.000

Data are expressed as mean ± standard deviation. Note: I_p/I₀, AIR_0′~10′, and AUC_ins-IVGTT were presented as mean ± standard deviation, after conversion into normally distributed Ln values. *P<0.05 by one-way ANOVA (vs. TNGT); ^†P<0.05 by one-way ANOVA (vs. TIGR); ^‡P<0.05 by one-way ANOVA (vs. TDM); ^§P<0.05 by one-way ANOVA (vs. NGT); ^||P<0.05 by one-way ANOVA (vs. IGR); ^¶P<0.05 by one-way ANOVA (vs. T2DM). AIR: Acute insulin secretary response; AUC: Area under the curve; TNGT: Hyperthyroidism with normal glucose tolerance; TIGR: Hyperthyroidism with impaired glucose regulation; TDM: Hyperthyroidism with diabetes mellitus; NGT: Normal glucose tolerance control group; IGR: Impaired glucose regulation control group; T2DM: Type 2 diabetes mellitus control group; ANOVA: Analysis of variance; I_P/I₀: Peak insulin/fasting insulin.