Table 3. The relationship between RPR (≥0.13) and survival outcomes (n=57).

Chi-square (χ²) = 45.8, Degrees of freedom (df) = 1

Chi-square p < 0.00000001, Fisher’s exact p = 1.27 × 10⁻⁵

High RPR (≥0.13) is very strongly associated with mortality.

RPR group	Non-survivors	Survivors
High (≥0.13)	4	1
Low (<0.13)	0	52