The data showed a significant association of lymphocyte count (HR 2.13, 95% CI 1.05–4.30; P = 0.0353), lower levels of AST (HR0.94, 95% CI 0.90–0.99; P = 0.0286), LDH (HR 0.99, 95% CI 0.98–1.00; P = 0.0105), CRP (HR 0.96, 95% CI 0.93–1.00; P = 0.0390), ESR (HR 0.97, 95% CI 0.95–1.00; P = 0.0317) and APTT on admission (HR 0.92, 95% CI 0.86–0.97; P = 0.0042) in RP subjects. This evidence concerns the gene ESR1 and retinitis pigmentosa 1.