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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Mol Psychiatry. 2021 Apr 7;26(7):3374–3382. doi: 10.1038/s41380-021-01078-1

Fig. 1. Suicide rates in the US from 1999 to 2018 for men, stratified by firearm involvement, across age, period, and cohort.

Fig. 1

A = Age, P = Period, C = Cohort. All isolines are spaced at 5 years. Suicide rates are stratified by firearm involvement. Suicide rates for each birth cohort can be visualized along its specific diagonal C isoline, with corresponding ages and periods along A and P isolines, respectively. For instance, diagonal isoline C:1964 represents the suicide rate specific to the cohort of men born in 1964. The hexagon where C:1964 intersects with vertical isoline P:2010 and diagonal isoline A:46 represents their suicide rate in year 2010, when they were 46 years of age. Likewise, suicide rates for each period can be visualized along its specific column or vertical P isoline; and suicide rates for each age group along its specific diagonal A isoline.