Table 2.

Socio-demographic characteristics and blood pressure of the participants.

Variables	N	%	Blood pressure (mmHg)
			Systolic blood pressure mean ± standard deviation	P-value	Diastolic blood pressure mean ± standard deviation	P-value
Total	12,849	100.0	119.4 ± 12.5		70.9 ± 8.9
Year				< 0.001		< 0.001
2015	4436	34.5	118.8 ± 12.3		70.4 ± 9.1
2016	4128	32.1	118.5 ± 12.4		71.1 ± 8.3
2017	4285	33.4	121.1 ± 12.6		71.3 ± 9.1
Gender				< 0.001		< 0.001
Male	5652	44.0	125.7 ± 11.1		72.6 ± 9.1
Female	7197	56.0	114.5 ± 11.2		69.6 ± 8.4
Residence				< 0.001		< 0.001
Urban	9289	72.3	120.0 ± 12.6		71.4 ± 8.9
Rural	3560	27.7	118.0 ± 12.0		69.6 ± 8.8
Region				< 0.001		< 0.001
West	959	7.5	116.0 ± 12.1		68.3 ± 8.3
Midland	10,259	79.8	119.8 ± 12.5		71.2 ± 9.0
East	1631	12.7	119.3 ± 12.3		70.3 ± 8.4
Body mass index				< 0.001		< 0.001
Normal	10,497	81.7	117.6 ± 11.9		69.9 ± 8.4
Overweight	1646	12.8	126.1 ± 11.4		74.0 ± 9.2
Obesity	706	5.5	131.3 ± 11.1		78.6 ± 9.8
Adequate physical activity				< 0.001		< 0.001
Yes	8687	67.6	115.5 ± 11.3		69.0 ± 7.9
No	4162	32.4	127.7 ± 10.5		74.8 ± 9.5
Stay up late				< 0.001		< 0.001
Yes	2511	19.5	125.2 ± 11.7		73.4 ± 9.3
No	10,338	80.5	118.0 ± 12.2		70.3 ± 8.7
Family history of cardiovascular diseases				0.565		0.001
Yes	856	6.7	119.2 ± 13.9		72.0 ± 10.0
No	11,993	93.3	119.5 ± 12.3		70.8 ± 8.8
Resting heart rate				< 0.001		< 0.001
≤ 100	12,555	97.7	119.3 ± 12.3		70.7 ± 8.8
> 100	294	2.3	127.3 ± 15.0		78.8 ± 10.2