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. 2021 Jul 28;2021:9949714. doi: 10.1155/2021/9949714

Table 2.

Univariate and multivariate Cox analyses in SCLC patients with BM.

Univariate Cox analysis Multivariate Cox analysis
HR 95% CI P HR 95% CI P
Age
<66
66–79 1.216 1.138 1.300 ≤0.01 1.155 1.080 1.235 ≤0.01
>79 1.865 1.678 2.073 ≤0.01 1.344 1.204 1.500 ≤0.01

Race
Black
Others 1.111 0.917 1.346 0.281
White 1.058 0.935 1.198 0.372
Unknown 0.670 0.167 2.692 0.572

Sex
Female
Male 1.083 1.018 1.153 0.012 1.099 1.031 1.172 ≤0.01

Primary site
Upper lobe
Middle lobe 0.804 0.675 0.959 0.015 0.806 0.676 0.961 0.016
Lower lobe 1.021 0.939 1.111 0.621 0.971 0.892 1.056 0.487
Lung, NOS 1.159 1.063 1.264 ≤0.01 1.130 1.036 1.232 ≤0.01
Others 0.988 0.896 1.090 0.811 1.025 0.929 1.131 0.618

Grade
I
II 2.220 0.677 7.275 0.188
III 1.926 0.858 4.325 0.112
IV 1.883 0.842 4.214 0.123
Unknown 1.994 0.895 4.444 0.091

Laterality
Bilateral
Left 0.923 0.702 1.213 0.565
Right 0.927 0.706 1.218 0.588
Unknown 1.128 0.837 1.520 0.430

T stage
T1
T2 1.075 0.938 1.233 0.299
T3 1.156 1.007 1.327 0.040
T4 1.148 1.009 1.306 0.036
Unknown 1.184 1.033 1.356 0.015

N stage
N0
N1 0.983 0.829 1.166 0.847
N2 1.013 0.902 1.139 0.825
N3 1.015 0.895 1.151 0.814
Unknown 1.053 0.910 1.220 0.487

Surgery
No
Yes 1.018 0.830 1.248 0.864

Radiotherapy
No
Yes 0.676 0.633 0.721 ≤0.01 0.801 0.747 0.860 ≤0.01

Chemotherapy
No
Yes 0.249 0.231 0.268 ≤0.01 0.272 0.252 0.294 ≤0.01

Brain metastasis
No
Yes 1.162 1.073 1.259 ≤0.01 1.271 1.168 1.384 ≤0.01

Liver metastasis
No
Yes 1.304 1.224 1.389 ≤0.01 1.309 1.227 1.395 ≤0.01

Lung metastasis
No
Yes 1.154 1.072 1.243 ≤0.01

Insurance status
Uninsured
Insured 0.755 0.634 0.900 ≤0.01

Marital status
Unmarried
Married 0.855 0.804 0.911 ≤0.01 0.895 0.839 0.954 ≤0.01

SCLC, small cell lung cancer; BM, bone metastasis.