Females had significantly higher scores than males on both anxiety measures (HAI t(148.73) = −4.12, p < 0.001; GAD t(153.30) = −3.79, p < 0.001), and there was no significant difference between health anxiety and generalised anxiety scores across different ethnic groups (HAI p = 0.146; GAD p = 0.232). This evidence concerns the gene GAD1 and generalized anxiety disorder.