Table 4.

OS comparisons stratified by major clinicopathological factors

Variables	Number	Median OS (mo)	95 % CI (mo)	P
Gender				0.955
Male	41	22.7	6.2–39.2
Female	59	24.2	14.2–34.2
Age (year)				0.608
<60	71	22.7	13.4–32.0
≥60	29	25.9	7.0–44.8
Primary tumor				0.000
Carcinoma of the stomach	30	15.7	10.8–20.6
Carcinoma of the colorectum	41	14.9	7.9–21.9
Pseudomyxoma peritonei	13	Not reached	Not reached
Carcinoma of ovary and primary peritoneum	16	34.6	22.1–47.1
Neoadjuvant chemotherapy				0.128
No	53	31.2	18.4–44.0
Yes	47	20.7	11.6–29.8
PC timing				0.086
Synchronous	80	27.5	18.1–36.9
Metachronous	20	13.2	10.6–15.8
PCI scores				0.000
≤20	44	46.1	10.7–81.5
>20	56	16.3	8.6–24.0
CC scores				0.000
0–1	63	42.9	28.3–57.5
2–3	37	13.6	10.6–15.6
Postoperative chemotherapy cycles				0.000
<6	49	14.1	9.6–18.6
≥6	51	31.9	24.1–39.7
SAE				0.007
No	86	31.2	20.5–41.9
Yes	14	12.2	9.5–15.0
Ascites				0.095
≤1000 mL	63	24.2	13.5–34.9
>1000 mL	37	21.2	4.8–37.7

In the original surgery calculation

OS overall survival, mo months