Fig. 2From: Argyrophilic grain disease is common in older adults and may be a risk factor for suicide: a study of Japanese forensic autopsy casesFrequency of argyrophilic grain disease (AGD) and suicide rate in each age group. The stage of AGD increased with age (Spearman’s rank correlation test P < 0.001). Suicide rates were significantly higher among AGD cases aged 60 years and above than non-AGD cases (*chi-square test P < 0.05)Back to article page