Research Article
Polymorphism of MTHFR C677T Gene and the Associations with the Severity of Essential Hypertension in Northern Chinese Population
Table 4
Univariate analysis of characteristics associated with essential hypertension.
| | Characteristic | Hypertension grade | value | | Grade 1 | Grade 2 | Grade 3 |
| | Sex n (%) | | | | 0.508 | | Male | 34 (16.3) | 59 (28.2) | 116 (55.5) | | | Female | 19 (19.6) | 31 (32.0) | 47 (48.5) | | | Age, yearsb | 65.28 ± 15.02 | 67.86 ± 10.41 | 64.28 ± 12.47 | 0.609 | | BMI (kg/m2b) | 25.22 ± 4.24 | 24.87 ± 3.12 | 25.25 ± 3.08 | 0.584 | | Family history of hypertension n (%) | | | | 0.009a | | No | 43 (21.4) | 62 (30.8) | 96 (47.8) | | | Yes | 10 (9.5) | 28 (26.7) | 67 (63.8) | | | Career n (%) | | | | 0.544 | | Unemployed | 5 (13.5) | 12 (32.4) | 20 (54.1) | | | Retired | 29 (16.5) | 56 (31.8) | 91 (51.7) | | | Manager | 8 (20.5) | 8 (20.5) | 23 (59.0) | | | Technician | 3 (16.7) | 2 (11.1) | 13 (72.2) | | | Other | 8 (22.2) | 12 (33.3) | 16 (44.4) | | | Marital status n (%) | | | | 0.145 | | Married | 49 (18.6) | 80 (30.3) | 135 (51.1) | | | Divorced/widowed | 4 (9.5) | 10 (23.8) | 28 (66.7) | | | Residence n (%) | | | | 0.978 | | City | 42 (17.5) | 70 (29.2) | 128 (53.3) | | | Countryside | 11 (16.7) | 20 (30.3) | 35 (53.0) | | | Smoking n (%) | | | | 0.001a | | Yes | 13 (9.2) | 41 (29.1) | 87 (61.7) | | | No | 40 (24.2) | 49 (29.7) | 76 (46.1) | | | Drinking n (%) | | | | 0.976 | | Yes | 18 (17.5) | 31 (30.1) | 109 (52.4) | | | No | 35 (17.2) | 59 (29.1) | 54 (53.7) | |
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a. bMean ± SD. BMI body mass index. |
