Retrospective Study
Copyright ©The Author(s) 2020.
World J Clin Oncol. Dec 24, 2020; 11(12): 1029-1044
Published online Dec 24, 2020. doi: 10.5306/wjco.v11.i12.1029
Table 1 Overall survival analysis of mucoepidermoid carcinoma of the major salivary glands
nMedian survival
Univariate hazard ratio
Multivariate hazard ratio
95%CI
Estimate
95%CI
Estimate
95%CI
Age bands
00-0911Cannot estimateCannot estimateCannot estimate
10-1986Cannot estimate0.12a0.02-0.370.13c0.06-0.32
20-29174Cannot estimate0.16a0.07-0.320.18c0.12-0.26
30-39275Cannot estimate0.62b0.42-0.920.73c0.68-0.78
40-49319401 ± 38.42ReferenceReference
50-59431248 ± 13.932.55a1.93-3.392.51c2.33-2.69
60-69381167 ± 26.255.00a3.75-6.754.31c3.28-5.67
70-7933670 ± 17.9411.38a8.25-15.957.52c6.91-8.18
80+19735 ± 6.8720.02a13.67-29.9212.24c11.58-12.95
Stage
Localized 1344342 ± 26.24ReferenceReference
Regional 59199 ± 19.593.07a2.66-3.541.95c1.95-1.96
Distant 14329 ± 9.646.96a5.51-8.752.84c2.73-2.95
Unknown 132118 ± 61.692.69a1.86-3.801.6b1.11-2.31
Primary tumor size (mm)
0-10209Cannot estimateReferenceReference
11-20576331 ± 59.731.95c1.30-3.011.64c1.39-1.94
21-30355248 ± 54.663.15a2.08-4.912.07c1.36-3.13
31-40150141 ± 57.384.63a2.97-7.402.23c1.98-2.52
41-505746 ± 38.769.26a5.56-15.592.66c1.52-2.81
> 508752 ± 36.219.14a5.67-15.052.87c2.63-3.13
Unknown/unspecific776220 ± 26.33.43a2.35-5.182.09c1.73-2.51
Grade
I403401 ± 48.25ReferenceReference
II850340 ± 33.681.260.98-1.631.30b1.02-1.67
III/IV53855 ± 11.055.44a4.27-6.992.10c1.98-2.23
Unknown419201 ± 39.442.49a1.94-3.201.61c1.52-1.70
Race
American Indian/Alaska Native16Cannot estimate0.470.13-1.201.640.61-4.45
Asian or Pacific Islander206308 ± 66.30.70b0.53-0.910.930.71-1.21
Black239Cannot estimate0.59a0.45-0.761.000.78-1.29
Unknown 23Cannot estimate0.10c0.00-0.540.310.04-2.26
White1726226 ± 21.22ReferenceReference
Sex
Female 1093327 ± 31.14ReferenceReference
Male1117187 ± 22.691.76a1.54-2.011.26b1.10-1.44
Radiation
No/unknown1200340 ± 34.890.46a0.40-0.531.070.70-1.63
Yes1010147 ± 23.39ReferenceReference
Sequence
Not applicable 1260327 ± 29.07ReferenceReference
Radiation after surgery902162 ± 25.621.82a1.59-2.081.180.76-1.83
Radiation before surgery48162 ± 56.481.67b1.12-2.401.17c1.10-1.25
Surgery
No 7727 ± 11.814.26a3.16-5.642.09c1.40-3.10
Unknown2816 ± 10.374.43a2.87-6.572.41c1.43-4.05
Yes2105263 ± 23.24ReferenceReference
Diagnosis year
1975-1995960221 ± 23.771.31c1.13-1.521.38c1.16-1.64
1996-20161250Cannot estimateReferenceReference
Surgery type
Excision 2085261 ± 23.23ReferenceVariable not used in multivariate analysis
Limited surgical procedure/biopsy20Cannot estimate1.010.52-1.96
None 7727 ± 11.814.28a3.17-5.67
Unknown2816 ± 10.374.44a2.88-6.59
Diagnosis year
1975-1984405207 ± 31.311.77a1.39-2.26Variable not used in multivariate analysis
1985-1994497230 ± 36.991.50c1.18-1.91
1995-2004564Cannot estimate1.32b1.04-1.68
2005-2016744Cannot estimateReference
Table 2 Cause-specific survival analysis of mucoepidermoid carcinoma of the major salivary glands
nMedian survival
Univariate hazard ratio
Multivariate hazard ratio
95%CI
Estimate
95%CI
Estimate
95%CI
Age bands
00-0911Cannot estimateCannot estimateCannot estimate
10-1986Cannot estimate0.23b0.03-0.900.28b0.10-0.74
20-29174Cannot estimate0.23b0.06-0.670.29c0.16--0.51
30-39275Cannot estimate0.710.37-1.340.950.85-1.06
40-49319Cannot estimate ReferenceReference
50-59431Cannot estimate2.50a1.62-3.961.99c1.30-3.06
60-69381Cannot estimate3.34a2.17-5.292.47c2.18-2.80
70-79336Cannot estimate5.41a3.48-8.673.00c2.63-3.43
80+197Cannot estimate7.67a4.69-12.923.47c3.17-3.79
Stage
Localized 1344Cannot estimateReference
Regional 591Cannot estimate7.46a5.78-9.703.90c3.77-4.04
Distant 14341 ± 23.4316.71a11.95-23.345.79c5.77-5.81
Unknown 132Cannot estimate6.27a3.62-10.383.01c1.79-5.05
Primary tumor size (mm)
0-10209Cannot estimateReferenceReference
11-20576Cannot estimate1.870.86-4.621.4b1.01-1.92
21-30355Cannot estimate5.08a2.41-12.342.13c1.48-3.06
31-40150Cannot estimate8.18a3.75-20.312.27b1.04-4.95
41-5057Cannot estimate17.24a7.48-44-633.19c2.44-4.17
> 508789 ± 108.6918.24a8.30-45.633.53c2.58-4.83
Unknown/unspecific776Cannot estimate6.25a3.10-14.692.57c1.73-3.82
Grade
I403Cannot estimateReferenceReference
II850Cannot estimate1.750.98-3.331.560.88-2.76
III/IV538Cannot estimate15.48a9.17-28.164.35c2.52-7.52
Unknown419Cannot estimate7.02a4.06-13.012.92c1.67-5.10
Race
American Indian/Alaska Native16Cannot estimate1.240.33-3.204.29c2.18-8.48
Asian or Pacific Islander206Cannot estimate0.64b0.41-0.960.790.52-1.19
Black239Cannot estimate0.66b0.44-0.951.060.94-1.19
Unknown 23Cannot estimate0.00b0.00-0.90Cannot estimate
White1726Cannot estimateReferenceReference
Sex
Female 1093Cannot estimateReferenceReference
Male1117Cannot estimate2.38a1.92-2.961.36b1.09-1.69
Radiation
No/unknown1200Cannot estimate0.27a0.22-0.342.100.43-1.49
Yes1010Cannot estimateReferenceReference
Sequence
Not applicable 1260Cannot estimateReferenceReference
Radiation after surgery902Cannot estimate2.66a2.15-3.300.960.50-1.84
Radiation before surgery48Cannot estimate2.79c1.55-4.701.050.47-2.33
Surgery
No 77Cannot estimate4.37a2.89-6.382.17b1.18-3.98
Unknown2874 ± 7.674.84a2.54-8.441.62c1.49-1.76
Yes2105Cannot estimateReferenceReference
Diagnosis year
1975-1995960Cannot estimate1.40b1.14-1.731.33b1.03-1.72
1996-20161250Cannot estimateReferenceReference
Surgery typeVariable not used in multivariate analysis
Excision 2085Cannot estimateReference
Limited surgical procedure/biopsy20Cannot estimate1.500.48-3.55
None 77Cannot estimate4.41a2.92-6.44
Unknown2874 ± 7.674.89a2.57-8.53
Diagnosis yearVariable not used in multivariate analysis
1975-1984405Cannot estimate2.09a1.53-2.88
1985-1994497Cannot estimate1.47b1.06-2.04
1995-2004564Cannot estimate1.44b1.05-1.98
2005-2016744Cannot estimateReference