Figure 2

Survival rate following exposure to 90% oxygen. The survival times of IGF-1R^+/+ mice (male: n = 15; female: n = 15) and IGF-1R^neo/- mice (male: n = 16; female: n = 15) were measured following exposure to 90% oxygen. Data are expressed as percentage of mice alive at each time point. The asterisk indicates significant differences between IGF-1R^+/+ and IGF-1R^neo/- mice, as determined by Kaplan-Meier analysis; P < 0.05.