Table 2.

Glucose levels maintained within different ranges over the surgery period and percentage of time spent with the glucose levels maintained between 7.8–10 mmol.l⁻¹ and 6.7–10 mmol.l.⁻¹

	Control (n = 29)	Experimental (n = 30)	Odds ratio 95% CI	P value
Glucose levels maintained ≤ 7.8 mmol.l−1 (more than 50% of the surgery time)			4.4 (1.4–13.8)	0.01
Yes	6 (20.7)	16 (53.3)
No	23 (79.3)	14 (46.7)
Glucose levels maintained ≤ 7.8 mmol.l−1 (more than 95% of the surgery time)			4.3 (1.1–17.8)	0.03
Yes	3 (13.8)	10 (33.3)
No	26 (86.2)	20 (66.7)
Glucose levels maintained ≤ 10 mmol.l−1 (more than 50% of the surgery time)			8.56 (1.7–43.2)	0.004
Yes	18 (62.1)	28 (93.3)
No	11 (37.9)	2 (6.7)
Glucose levels maintained ≤ 10 mmol.l−1 (more than 95% of the surgery time)			7.1 (2.1–23.8)	0.001
Yes	12 (41.4)	25 (83.3)
No	17 (58.6)	5 (16.7)
Glucose levels maintained between 7.8–10 mmol.l−1 (more than 50% of the surgery time)			1.9 (0.7–5.3)	0.29
Yes	11 (37.9)	16 (53.3)
No	18 (62.1)	14 (46.7)
Glucose levels maintained between 7.8–10 mmol.l−1 (more than 95% of the surgery time)			2.3 (0.6–5.6)	0.21
Yes	4 (13.8)	8 (26.7)
No	25 (86.2)	22 (73.3)
Glucose levels maintained between 6.7–10 mmol.l−1 (more than 50% of the surgery time)			2.9 (0.9–8.7)	0.06
Yes	14 (48.3)	22 (73.3)
No	15 (51.7)	8 (26.7)
Glucose levels maintained between 6.7–10 mmol.l−1 (more than 95% of the surgery time)			4.2 (1.3–14.0)	0.016
Yes	5 (17.2)	14 (46.7)
No	24 (82.8)	16 (53.3)
Percentage of time spent with glucose levels maintained between 7.8–10 mmol.l−1	35.1 (34.1)	37.1 (37.0)	-0.06a (-0.6–0.4)	0.8
Percentage of time spent with glucose levels maintained between 6.7–10 mmol.l−1	44.3 (36.3)	60.6 (40.1)	-0.42 (-0.9–0.1)	0.11

CI Confidence interval of point estimate

^aHedges’ g is interpreted for continuous outcome