Table 1.
The baseline characteristics of all qualified studies in this meta-analysis.
| Author, ref and year | Country (Ethnicity) | Design | Status | Age, year | Gender, M (%) | BMI, kg/m2 | SBP, mmHg | DBP, mmHg | T2238C | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| TT | TC | CC | |||||||||
|
Rahmutula et al. [8] 2001 |
Japan (Japanese) | H-B | Cases | 50 (8) | 65.67 | 24.7 (3.7) | 170 (20) | 105 (12) | 222 | 11 | 0 |
| Controls | 49 (10) | 69.95 | 23 (3.1) | 115 (13) | 70 (10) | 200 | 13 | 0 | |||
|
Nannipier et al. [7] 2001 |
Europe (White) | P-B | Cases | 56 (11) | 47.93 | 25.9 (2.8) | 141 (15) | 86 (10) | 95 | 26 | 0 |
| Controls | 41 (10) | 47.62 | 24.4 (3.2) | 122 (14) | 78 (8) | 67 | 37 | 1 | |||
|
Rutledge et al. [6] 1995 |
US (Black) | H-B | Cases | 44.7 (15.2) | 56.70 | —* | — | — | 17 | 36 | 7 |
| Controls | 44.8 (14.7) | 65.90 | — | — | — | 19 | 16 | 9 | |||
|
Hu et al. [9] 2010 |
China (Han Chinese) | H-B | Cases | 57.71 (9.97) | 48 | 23.79 (2.99) | 171.47 (13.01) | 100.74 (8.34) | 97 | 3 | 0 |
| Controls | 55.05 (10.64) | 43.30 | 24.24 (4.50) | 115.66 (10.99) | 73.49 (8.15) | 93 | 4 | 0 | |||
|
Tian and Cheng [10] 2010 |
China (Han Chinese) | H-B | Cases | 59.89 (9.81) | 72.00 | 24.33 (3.69) | 170.95 (23.86) | 105.67 (14.35) | 960 | 14 | 2 |
| Controls | 59.68 (9.78) | 70.00 | 23.31 (3.21) | 115.59 (20.85) | 70.20 (11.00) | 962 | 12 | 2 | |||
|
Li et al. [11] 2005 |
China (Kazakh Chinese) | P-B | Cases | 46.80 (7.82) | 40.89 | 26.27 (4.84) | 168.53 (24.72) | 104.51 (15.02) | 273 | 35 | 5 |
| Controls | 45.75 (8.63) | 45.37 | 25.16 (5.63) | 117.39 (11.36) | 73.95 (8.58) | 205 | 187 | 16 | |||
|
Wang and Mao [12] 2009 |
China (Han Chinese) | H-B | Cases | 68.61 (12.76) | 57.14 | — | — | — | 220 | 18 | 0 |
| Controls | 68.45 (13.19) | 59.27 | — | — | — | 179 | 5 | 0 | |||
Ref: reference number; P-B: population-based design; H-B: hospital-based design; M (%): male (percent); BMI: body mass index; SBP: systolic blood pressure; DBP: diastolic blood pressure. *Information not available. Data are expressed as mean (SD) unless otherwise indicated.