Plasma NTBC μmol/L	Average urine SUAC μmol/L	Average urine SUAC mmol/mole creatinine	Number of sample pairs
0‐20	3.89	0.88	7
20‐30	0.8	0.23	17
30‐40	0.45	0.17	29
40‐50	0.43	0.08	33
50‐60	0.35	0.08	30
>60	0.43	0.06	28
		Total	144