Serum Potassium and Glucose Regulation in the ADDITION-Leicester Screening Study

Table 2

Linear regression to determine the difference in 2-hour glucose across K⁺ quartiles.

Models	K^+ quartiles
	<4.0 mmol/L	4.0–4.2 mmol/L	4.3–4.4 mmol/L	≥4.5 mmol/L
Model 1^a	0.53 (0.36 to 0.70)	0.20 (0.04 to 0.35)	−0.02 (−0.19 to 0.15)	Reference
	Model 2^b	0.49 (0.29 to 0.63)	0.17 (0.02 to 0.32)		0.02 (−0.15 to 0.19)	Reference
Model 3^c		0.49 (0.33 to 0.66)	0.22 (0.07 to 0.37)	0.05 (−0.11 to 0.21)	Reference

Data reported as difference in 2-hour glucose (95% confidence intervals).
^aUnadjusted.
^bAdjusted for baseline measures of average systolic and diastolic blood pressure and for Cockcroft-Gault estimated glomerular filtration rate.
^cAdjusted for the confounders in model 2, plus ethnicity, sex, age, and BMI.