Table 3.

Interaction of UA with overweight on hypertension on additive and multiplicative scale

SUA	RERI (95%CI)	P	Product term OR (95%CI)	P
Q2	0.46 (-0.67–1.59)	0.43	0.93 (0.54–1.59)	0.78
Q3	0.90 (-0.24–2.04)	0.12	1.00 (0.60–1.69)	0.99
Q4	1.04 (-0.22–2.29)	0.11	0.88 (0.53–1.45)	0.62
Q5	3.26 (1.43–5.09)	< 0.01	1.32 (0.80–2.18)	0.28

RERI, relative excess risk due to interaction; SUA, serum uric acid. Adjustment as in Table 2