Figure 2

Forest plot of hazard ratios for overall survival and 95% CI in fourteen randomized controlled trials in patients with resectable head and neck squamous cell carcinoma treated with induction chemotherapy followed by locoregional treatment, or locoregional treatment alone. Richard 1991a²³ is for cancer of the floor of the mouth, Richard 1991b²³ is for cancer of the posterior oral cavity and oropharynx. Volling 1994¹³, Richard 1998²⁷, Lewin 1997¹⁴, Paccagnella 2004¹¹, Domenge 2000¹⁵, Licitra 2003¹⁶, Lefebvre 1996²⁴, Veterans Affairs 1998²⁷, Kohno 2000²¹, Maipang 1995¹⁹, Schuller 1988²⁰, Jortay 1990²².