Fluctuation of fasting blood glucose in patients who underwent primary or revision total joint arthroplasty: a retrospective review

Table 1 Demographic features and glycemic status of patients who underwent total joint arthroplasty

Group and variable	Primary	Revision	P value
No. of patients	1417	63
Age^a	63.3 ± 12.3	65.5 ± 11.1	0.17^c
Sex^b			0.10^d
Female	1012 (71.4%)	39 (61.9%)
Male	405 (28.6%)	24 (38.1%)
Joint ^b			< 0.001^d
Hip	604 (42.6%)	53 (84.1%)
Knee	813 (57.4%)	10 (15.9%)
Diabetes mellitus^b			0.17^d
Diabetic	184 (13.0%)	12 (19.0%)
Non-diabetic	1233 (87.0%)	51 (81.0%)
Blood pressure^b			0.23^d
Hypertension	580 (40.9%)	42 (66.7%)
Non-hypertension	837 (59.1%)	21 (33.3%)
Anaesthesia^b			0.28^d
Spinal	1032 (72.8%)	43 (68.3%)
General	385 (27.2%)	20 (31.7%)
Glycemic status (mg/dL)^a
Pre-operation	93 ± 26	94 ± 28	0.81^e
Post-operation (within 6 days)	109 ± 32	121 ± 45	0.01^e
Total	103 ± 31	111 ± 42	0.55^e

TJA total joint arthroplasty
^aData are presented as the mean ± standard deviation
^bData are presented as the number (percentage) of patients
^cP value was calculated by the independent t test
^dP value was calculated by the chi-square test
^eP value was calculated by the Mann-Whitney U test. P < 0.05 indicates a significant difference between groups

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