Skip to main content
. Author manuscript; available in PMC: 2023 Jul 1.
Published in final edited form as: J Invest Dermatol. 2021 Dec 11;142(7):1804–1811.e6. doi: 10.1016/j.jid.2021.12.003

Figure 4: Birth cohort residuals of the median polish analysis.

Figure 4:

Dots represent the residuals from the median polish procedures plotted against year of birth. Four median polish procedures modelled absolute age-adjusted male and female mortality (A, B), and incidence (C, D) by adult (≥ 20 years) 5-year-grouped age categories and year of occurrence from 1975-2017. The curve fit of the residuals is produced from LOESS regression. Rates were transformed by taking natural logarithms prior to fitting the median polish models to analyze the interaction of age and period on the multiplicative scale. Systematic deviation from 0.0 suggests the presence of a birth cohort effect.