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. 2024 May 17;8(3):e311. doi: 10.1097/EE9.0000000000000311

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Figure 1. — Effect estimates and 95% confidence intervals (CIs) for the differences in DNA methylation-based epigenetic age measures associated with ever versus never chemical hair products use in the past year (N = 4,358). P_het: P value for heterogeneity using Wald tests on the race-by-hair product interaction terms. β: effect estimates from the results of survey-weighted multivariable linear regressions. All survey-weighted models were adjusted for chronological age, educational attainment, household annual income, body mass index category, menopausal status, physical activity, smoking status, alcohol consumption, and DNA methylation platforms.