The Additive Interaction between Body Mass Index and Hypertension Family History in Han and Yugur: The China National Health Survey (CNHS)
Table 1
Demographic characteristics of 5791 participants by ethnicity and FHH in China.
Han (N=4195)
Yugur (N=1596)
FHH (-)
FHH (+)
P
FHH (-)
FHH (+)
P
(N=1855)
(N=2340)
(N=547)
(N=1049)
Age (yrs.)
52.30±12.30
48.54±11.66
<0.0001
49.31±12.54
46.99±11.54
0.0003
Gender (%)
0.0085
0.1219
Male
816 (43.99)
935 (39.96)
271 (49.54)
477 (45.47)
Female
1039 (56.01)
1405 (60.04)
276 (50.46)
572 (54.53)
BMI (kg/m2)
23.69±3.06
23.96±3.16
0.0047
24.48±3.79
25.12±3.94
0.0019
BMI category (%)
0.1036
0.0070
Normal weight
1010 (54.45)
1233 (52.69)
261 (47.71)
420 (40.04)
Overweight
692 (37.30)
870 (37.18)
194 (35.47)
402 (38.32)
Obesity
153 (8.25)
237 (10.13)
92 (16.82)
227 (21.64)
SBP (mm Hg)
119.47±16.08
121.73±17.38
<0.0001
122.19±15.02
123.69±16.63
0.0679
DBP (mm Hg)
72.96±10.26
75.49±11.28
<0.0001
75.88±10.58
77.82±11.66
0.0008
Hypertension (%)
<0.0001
<0.0001
Yes
387 (20.86)
783 (33.46)
142 (25.96)
387 (36.89)
No
1468 (79.14)
1557 (66.54)
405 (74.04)
662 (63.11)
Current residence (%)
<0.0001
0.0059
Urban
1121 (60.43)
1705 (72.86)
175 (31.99)
409 (38.99)
Rural
734 (39.57)
635 (27.14)
372 (68.01)
640 (61.01)
Educational level (%)
<0.0001
0.0132
Low
707 (38.20)
530 (22.72)
310 (56.67)
559 (53.49)
Medium
735 (39.71)
1002 (42.95)
176 (32.18)
312 (29.86)
High
409 (22.10)
801 (34.33)
61 (11.15)
174 (16.65)
Smoking status (%)
0.0002
0.8351
Former smoker
209 (11.27)
179 (7.65)
54 (9.88)
106 (10.10)
Current smoker
400 (21.56)
494 (21.12)
168 (30.71)
307 (29.27)
Non-smoker
1246 (67.17)
1666 (71.23)
325 (59.41)
636 (60.63)
Alcohol consumption (%)
0.0001
0.4198
Former drinker
212 (11.44)
228 (9.74)
81 (14.81)
177 (16.87)
Current drinker
798 (43.07)
1162 (49.66)
292 (53.38)
565 (53.86)
Nondrinker
843 (45.49)
950 (40.60)
174 (31.81)
307 (29.27)
Physical activity (%)
0.0211
0.3711
Low
249 (13.44)
345 (14.74)
54 (9.87)
105 (10.02)
Moderate
1319 (71.22)
1703 (72.78)
366 (66.91)
667 (63.65)
High
284 (15.33)
292 (12.48)
127 (23.22)
276 (26.34)
Data were shown as Mean ± SD or N (%). FHH: family history of hypertension, BMI: body mass index, SBP: systolic blood pressure, DBP: diastolic blood pressure. The amount of missing data: educational level: 15, smoking status: 1, alcohol consumption: 2, physical activity: 4.
