Clinical features and survival of patients with multiple primary malignancies

doi:10.12998/wjcc.v9.i34.10484

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World Journal of Clinical Cases

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Retrospective Cohort Study

World J Clin Cases. Dec 6, 2021; 9(34): 10484-10493
Published online Dec 6, 2021. doi: 10.12998/wjcc.v9.i34.10484

Table 1 The characteristics of patients with two malignancies, n (%)

Characteristics	Synchronous MPM	Metachronous MPM	Total
Patients	51 (23.0)	171 (77.0)	222 (100)
Gender
Male	32 (62.7)	87 (50.9)	119 (53.6)
Female	19 (37.3)	84 (49.1)	103 (46.4)
Age in yr, median (range)
First cancer	62 (32-84)	55 (19-87)	56 (19-87)
Second cancer	62 (32-84)	64 (28-90)	64 (28-90)
The most common sites in first primary cancers
1^st	Esophagus, 9 (17.6)	Breast, 31 (18.1)	Breast, 33 (14.9)
2^nd	Colorectum, 8 (15.7)	Colorectum, 23 (13.7)	Colorectum, 31 (14.0)
3^rd	Bladder/thyroid/hypopharynx, 4 (7.8), respectively	Stomach, 14 (8.2)	Stomach, 17 (7.7)
The most common sites in second primary cancers
1^st	NSCLC, 12 (23.5)	NSCLC, 54 (31.6)	NSCLC,66 (29.7)
2^nd	Stomach, 9 (17.6)	Stomach, 15 (8.8)	Stomach, 24 (10.8)
3^rd	Esophagus/kidney, 6 (11.8), respectively	Liver, 13 (7.6)	Esophagus/liver, 16 (7.2), respectively
Median interval (range) between the first and second cancers (mo)	0.2 (0-5.9)	73.2 (6.3-536.8)	43.6 (0-536.8)
Metastasis	16 (31.4)	83 (48.5)	99 (44.6)
Median overall survival in mo	36.4	35.3	35.4

MPM: Multiple primary malignancies; NSCLC: Non-small cell lung cancer.

Citation: Wang XK, Zhou MH. Clinical features and survival of patients with multiple primary malignancies. World J Clin Cases 2021; 9(34): 10484-10493
URL: https://www.wjgnet.com/2307-8960/full/v9/i34/10484.htm
DOI: https://dx.doi.org/10.12998/wjcc.v9.i34.10484