Table 4. Interaction between lifestyle behaviors and the CACNA1D rs9810888 polymorphism on MAP.

Lifestyle behaviors	Category	Genotype	N	Mean	SE	b	SE	p	pinteraction
Protein intake (meat/fish/soy beans/egg)	<twice/day	GT/TT	495	68.9	0.5	2.50	1.29	0.053	0.453
		GG	90	71.4	1.2
	≥twice/day	GT/TT	292	68.5	0.7	0.95	1.62	0.557
		GG	61	69.4	1.5
Fruits and vegetables intakea	<twice/day	GT/TT	583	68.6	0.5	2.64	1.27	0.037	0.132
		GG	101	71.2	1.2
	≥twice/day	GT/TT	206	69.1	0.7	-0.57	1.60	0.724
		GG	51	68.6	1.4
Fried chips/cakes/cookies	No	GT/TT	183	69.6	0.9	1.27	2.00	0.524	0.892
		GG	43	70.9	1.8
	Yes	GT/TT	597	68.5	0.5	1.70	1.20	0.157
		GG	107	70.2	1.1
Western food	No	GT/TT	528	68.9	0.5	1.09	1.23	0.375	0.390
		GG	98	70.0	1.1
	Yes	GT/TT	250	68.4	0.7	3.06	1.83	0.096
		GG	51	71.5	1.7
Soft drink	No	GT/TT	337	68.6	0.6	0.79	1.55	0.610	0.534
		GG	58	69.4	1.4
	Yes	GT/TT	463	68.9	0.5	2.18	1.31	0.098
		GG	95	71.0	1.2
Physical activity	<1hour/day	GT/TT	358	69.8	0.6	1.71	1.54	0.267	0.939
		GG	66	71.5	1.4
	≥1hour/day	GT/TT	429	67.9	0.5	1.86	1.35	0.167
		GG	85	69.7	1.2
Screen time	<2 hours/day	GT/TT	503	68.3	0.5	0.42	1.26	0.738	0.094
		GG	95	68.7	1.2
	≥2 hours/day	GT/TT	292	69.5	0.7	4.08	1.70	0.017
		GG	57	73.6	1.6

Note: Adjusted for sex, age, age square and BMI.

a: for fruit and vegetable intake category, <twice/day means either fruits or vegetables intake <twice/day, and ≥twice/day means both fruits and vegetables ≥twice/day.

MAP: mean arterial pressure. BMI: body mass index. SE: standard error. The mean of BP values was adjusted for sex, age, age square and BMI.