The effect of preoperative different dexamethasone regimens on postoperative glycemic control in patients with type 2 diabetes mellitus undergoing total joint arthroplasty: a retrospective cohort study

Table 2 Postoperative blood glucose levels after TJA

Characteristics	Group A	Group B	Group C	P value	P1	P2	P3
FBG (mmol/L)
POD 0	7.2 ± 1.6	7.2 ± 1.6	7.3 ± 1.5	0.574	0.879	0.294	0.468
POD 0 returning to ward immediately	10.4 ± 1.8	10.7 ± 1.7	10.9 ± 2.1	< 0.001*	0.013*	< 0.001*	0.260
POD 1	8.7 ± 2.2	9.0 ± 2.5	9.6 ± 2.6	< 0.001*	0.189	< 0.001*	0.006*
POD 2	8.2 ± 1.6	8.3 ± 1.9	8.2 ± 1.9	0.583	0.303	0.908	0.459
POD 3	7.7 ± 1.5	7.9 ± 1.8	8.0 ± 1.7	0.131	0.328	0.052	0.435
During hospital stay	8.2 ± 1.4	8.4 ± 1.5	8.5 ± 1.5	0.018*	0.262	0.005*	0.173
FBG changes from preoperative baseline (mmol/L)
POD 0	0 ± 1.2	0.1 ± 0.9	0 ± 1.3	0.380	0.170	0.914	0.306
POD 0 returning to ward immediately	3.2 ± 1.8	3.6 ± 1.7	3.6 ± 2.2	< 0.001*	0.001*	0.003*	0.887
POD 1	1.5 ± 2.3	1.9 ± 2.4	2.3 ± 2.6	< 0.001*	0.060	< 0.001*	0.085
POD 2	1.0 ± 1.9	1.2 ± 1.9	0.9 ± 2.1	0.144	0.103	0.493	0.061
POD 3	0.5 ± 1.9	0.8 ± 2.0	0.7 ± 2.1	0.297	0.137	0.424	0.578
During hospital stay	1.2 ± 1.5	1.5 ± 1.5	1.5 ± 1.7	0.019*	0.018*	0.042*	0.787
Postoperative mean FBG (mmol/L)	8.8 ± 1.5	9.0 ± 1.7	9.2 ± 1.7	< 0.001*	0.075	0.001*	0.169
Postoperative maximum FBG (mmol/L)	10.7 ± 1.9	11.0 ± 2.0	11.4 ± 2.3	< 0.001*	0.020*	< 0.001*	0.055
Postoperative maximum FBG ≥ 11.1 mmol/L (%)	269 (35.8%)	91 (39.2%)	104 (44.8%)	0.043*	0.381	0.016*	0.259

TJA = total joint arthroplasty; DEX = dexamethasone; FBG = fasting blood glucose; POD = postoperative day. 11.1 mmol/L = 200 mg/dl. P = p-value of Group A versus B versus C; P1 = p-value of Group A versus B; P2 = p-value of Group A vs C; P3 = p-value of Group B versus C
*Meant p < 0.05 and the values were marked in bold

ISSN: 1749-799X