Research Article
Brain-Derived Neurotropic Factor Val66Met Polymorphism and Posttraumatic Stress Disorder among Survivors of the 1998 Dongting Lake Flood in China
Table 2
Participants’ characteristics by BDNF Val66Met carrier status.
| | Variable | Category | Total (%) | BDNF Val66Met carrier status | value | value | | Val/Val (%) | Met/Met + Met/Val (%) |
| | Overall | | 175 (100.0) | 40 (22.9) | 135 (77.1) | | | | Gender | Female | 94 (53.7) | 21 (52.5) | 73 (54.1) | 0.031 | 0.861 | | Male | 81 (46.3) | 19 (47.5) | 62 (45.9) | | Age (years) | 29–59 | 103 (58.9) | 24 (60.0) | 79 (58.5) | 0.028 | 0.867 | | ≥60 | 72 (41.1) | 16 (40.0) | 56 (41.5) | | Marital status | Married | 152 (86.9) | 38 (95.0) | 114 (84.4) | 3.102 | 0.083 | | Single/divorced/widowed | 23 (13.1) | 2 (5.0) | 21 (15.6) | | Education level | ≤primary school | 103 (58.9) | 21 (52.5) | 82 (60.7) | 0.865 | 0.352 | | >primary school | 72 (41.1) | 19 (47.5) | 53 (39.3) | | Flood-related stressors | 0–2 | 101 (57.7) | 25 (62.5) | 76 (56.3) | 0.487 | 0.485 | | ≥3 | 74 (42.3) | 15 (37.5) | 59 (43.7) | | Postflood stressors | 0–2 | 130 (74.3) | 28 (70.0) | 102 (75.6) | 0.499 | 0.480 | | ≥3 | 45 (25.7) | 12 (30.0) | 33 (24.4) |
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