Table 1. Association between KLK4 mRNA expression levels and clinical characteristics in patients with advanced high-grade serous ovarian cancer (FIGO stage III/IV).

Clinical parameters	No. of patients	KLK4
		Low/high a
Age		p = 0.006
≤ 60 years	58	37/21
> 60 years	80	32/48
Residual tumor mass		p = 0.303
0 mm	70	38/32
> 0 mm	66	30/36
Ascites fluid volume		p = 0.042
≤ 500 ml	78	45/33
> 500 ml	53	21/32

Due to missing values, numbers do not always add up to n = 138.

^a Categorized into low- and high-expressing groups by median.