CRP and lung cancer: Lung cancer risk was particularly elevated in individuals with weight loss (OR 3.43, 95%CI 2.26–4.79), smoking (OR 3.24, 95%CI 2.76–3.83), haemoptysis (OR 3.18, 95%CI 1.33–5.60), elevated CRP (OR 3.02, 95%CI 2.30–3.84) and loss of appetite (OR 2.88, 95%CI 1.36–4.96).