Characteristics | Before PSM | After PSM | ||||
---|---|---|---|---|---|---|
HR | 95%CI | p value | HR | 95%CI | p value | |
Age | 1.02 | 1.01–1.03 | <0.001 | 1.01 | 0.99–1.04 | 0.281 |
Year | ||||||
2004–2007 | Reference | Reference | ||||
2008–2011 | 0.74 | 0.60–0.92 | 0.006 | 0.56 | 0.31–1.04 | 0.066 |
2012–2015 | 0.71 | 0.55–0.89 | 0.004 | 0.86 | 0.47–1.56 | 0.611 |
Gender | ||||||
Female | Reference | Reference | ||||
Male | 1.32 | 1.06–1.65 | 0.013 | 1.92 | 1.04–3.54 | 0.037 |
Race | ||||||
White | Reference | Reference | ||||
Non-White | 0.99 | 0.81–1.22 | 0.941 | 1.04 | 0.59–1.84 | 0.881 |
Marital status | ||||||
Married | Reference | Reference | ||||
Unmarried | 1.14 | 0.93–1.40 | 0.222 | 1.16 | 0.65–2.07 | 0.621 |
Grade | ||||||
I/II | Reference | Reference | ||||
III/IV | 1.11 | 0.92–1.33 | 0.271 | 1.02 | 0.62–1.73 | 0.941 |
T stage | ||||||
T1 | Reference | Reference | ||||
T2a | 0.81 | 0.39–1.66 | 0.552 | 2.18 | 0.53–8.94 | 0.282 |
Primary site | ||||||
Cardia/fundus | Reference | Reference | ||||
Greater curvature/lesser curvature/body | 0.48 | 0.38–0.62 | <0.001 | 0.58 | 0.32–1.05 | 0.072 |
Others | 0.52 | 0.37–0.73 | <0.001 | 0.25 | 0.10–0.67 | 0.006 |
Pylorus/antrum | 0.4 | 0.31–0.51 | <0.001 | 0.27 | 0.12–0.6 | 0.001 |
Tumor size | ||||||
≤2cm | Reference | Reference | ||||
≤5cm | 1.06 | 0.86–1.32 | 0.611 | 1.51 | 0.86–2.64 | 0.152 |
>5cm | 1.02 | 0.75–1.39 | 0.892 | 1.56 | 0.71–3.44 | 0.271 |
RNE | ||||||
≥16 | Reference | Reference | ||||
1–15 | 1.33 | 1.09–1.62 | 0.004 | 1.63 | 1.02–2.63 | 0.043 |
RNP | ||||||
0 | Reference | Reference | ||||
1 | 1.17 | 0.56–2.47 | 0.683 | 2.78 | 0.65–11.93 | 0.171 |
2 | 1.57 | 0.72–3.39 | 0.251 | 1.94 | 0.35–10.67 | 0.442 |
Radiation | ||||||
None | Reference | Reference | ||||
Yes | 1.29 | 0.95–1.77 | 0.113 | 1.54 | 0.82–2.97 | 0.201 |
Chemotherapy | ||||||
None | Reference | Reference | ||||
Yes | 0.71 | 0.53–0.96 | 0.028 | 0.51 | 0.31-0.82 | 0.007 |