Knowledge of stroke warning signs and risk factors among patients with previous stroke or TIA in China

Aims and objectives: The purpose of this study was to describe knowledge about stroke warning signs and risk factors in patients with previous stroke or transient ischaemic attacks in China and to investigate the relationship between socio-demographic characteristics & health status and patients' knowledge about stroke.

Background: Stroke is the leading cause of death and functional impairment in China. Survivors are at high risk of new vascular events. Secondary prevention after stroke or transient ischaemic attacks is not satisfactory. Previous research suggests that awareness of stroke plays an important role in facilitating secondary prevention. However, little is known about knowledge of stroke warning signs and risk factors among patients with previous stroke/transient ischaemic attacks.

Design: A cross-sectional questionnaire study.

Methods: This study was conducted in Hunan Province, China, between July and December in 2010. Subjects were recruited using a cluster sampling method. A questionnaire was administered to 1600 patients with stroke/transient ischaemic attacks diagnose from eight hospitals, and 1200 patients (75%) responded. Patients' knowledge about stroke warning signs and risk factors were collected and analysed. Results. Patients' knowledge about stroke warning signs was very poor (only 3.3% identified all warning signs and 28.3% identified three). Patients' knowledge about important risk factors (e.g. atrial fibrillation, diabetes, metabolic syndrome, etc.) was also very poor (<30%). Patients' action in emergency was extremely poor (only 9.2% reported to call emergency service). The age, education, stroke-related diagnoses and family history of cardiovascular disease were significantly associated with patients' knowledge about stroke.

Conclusions: Knowledge about stroke warning signs and risk factors was very poor in patients with previous stroke or transient ischaemic attacks in China.

Relevance to clinical practice: Dissemination of stroke knowledge should be a core responsibility for Chinese clinical nurse. Future clinical education to improve patient's knowledge about stroke and further intervention to manage cardiovascular risk factors are indicated.