a trend toward significanceP = 0.09
In the recent individual patient meta-analysis by Palma et al ., among patients undergoing chemoradiotherapy for non-small cell lung cancer (NSCLC), factors predictive of the development of RP were V20 (odds ratio (OR) 1.03 per 1% increase in V20, P = 0.008), chemotherapy regimen (OR for carboplatin/paclitaxel 3.33, relative to cisplatin/etoposide; P < 0.001), and with a trend toward significance for advanced age (OR per 10-year increase 1.24, 95% CI 0.97–1.59, P = 0.09).