Skip to main content
. 2023 Feb 5;14(3):434–445. doi: 10.7150/jca.81588

Table 1.

Characteristics of full and propensity score-matched cohorts

Characteristics Full Cohort Propensity Score Matched
NAC (n=694) Surgery (n=2183) P value NAC (n=413) Surgery (n=413) P value
Gender 0.0034* 0.1468
Male 503(72.48) 1452(66.51) 282(68.28) 301(72.88)
Female 191(27.52) 731(33.49) 131(31.72) 112(27.12)
Age (years) <0.001* 0.8234
<60 260(37.46) 623(28.54) 135(32.69) 132(31.96)
>=60 434(62.54) 1560(71.46) 278(67.31) 281(68.04)
Age median (range) 62(36-84) 64(29-86) <0.001* 63(40-84) 64(40-82) 0.1178
Tumour length (cm) median (range) 6(1-19) 4(0.5-17) <0.001* 5(1-19) 5(1-17) 0.8976
BMI median (range) 23.1(15.6-33.9) 23.10(14.3-35.0) 0.9888 23.10(15.6-33.6) 23.30(15.6-30.9) 0.6943
NA 183 170 114 34
<18.5 25(4.89) 111(5.56) 0.7592 15(5.02) 20(5.28) 0.9584
18.5-24 288(56.36) 1097(54.90) 161(53.85) 200(52.77)
≥24 198(38.75) 790(39.54) 123(41.14) 159(41.95)
Smoking 0.0885 0.1674
NA 167 66 102 13
Never 259(49.15) 1153(54.46) 169(54.34) 189(47.25)
Ever 66(12.52) 231(10.91) 40(12.86) 57(14.25)
Current 202(38.33) 733(34.62) 102(32.80) 154(38.50)
Alcohol 0.0568 0.2620
NA 180 76 111 16
Never 278(54.09) 1238(58.76) 176(58.28) 218(54.91)
Ever 21(4.09) 55(2.61) 15(4.97) 13(3.27)
Current 215(41.83) 814(38.63) 111(36.75) 166(41.81)
Clinical TNM staging 7th ed N (%) <0.001* 0.2960
NA 63() 135() 0 0
Stage I 7(1.11) 193(9.42) 3(0.73) 3(0.73)
Stage II 303(47.94) 1341(65.48) 252(61.02) 230(55.69)
Stage III 321(50.79) 514(25.10) 158(38.26) 180(43.58)
Weight (kg) median (range) 63(38-98) 62(34-110) 0.0797 63(40-96) 63(38-59) 0.8791
NA 183 170 114 188
Histological Grade <0.001* 0.7843
NA 11 47 158 22
G1 23(3.37) 140(6.55) 12(4.71) 22(6.45)
G1-G2 60(8.78) 318(14.89) 34(13.33) 45(13.20)
G2 180(26.35) 666(31.18) 104(40.78) 125(36.66)
G2-G3 75(10.98) 325(15.22) 40(15.69) 54(15.84)
G3 345(50.51) 687(32.16) 65(25.49) 95(27.86)
CMI positive N (%) 2(0.58) 7(0.72) 1.0000 2(0.91) 2(1.14) 1.0000
pCR N (%) 12(6.45) NA NA 25(6.05) NA NA
ypTNM stage
I 68(9.80) 406(18.60) 39(9.44) 63(15.25)
II 246(35.45) 868(39.76) 161(38.98) 144(34.87)
III 292(42.07) 692(31.70) 172(41.65) 148(35.84)
IVA 78(11.24) 191(8.75) 32(7.75) 51(12.35)
IVB 10(1.44) 26(1.91) 9(2.18) 7(1.69)
Cycles of NAC median (Q1, Q3) 2(1,2) NA NA 2(1,2) NA NA
Cycles of NAC NA NA
1~2 653(94.09) NA 387(93.70) NA
3-4 40(5.76) NA 25(6.05) NA
5 1(0.14) NA 1(0.24) NA
Cycles of AC median (Q1, Q3) 2(1,2) NA NA 2(1,4) NA NA
AC N (%) 0.001* 0.886
Yes 287(41.35) 748(34.26) 159(38.50) 161(38.98)
No 407(58.65) 1435(65.74) 254(61.50) 252(61.02)

Abbreviations: NAC, neoadjuvant chemotherapy; N, number; BMI, body mass index; NA, not available; TNM, tumour/node/metastasis; G1, well differentiated; G2, moderately differentiated; G3, poorly differentiated; CMI, circumferential margin involvement; ypTNM, pathological tumour/node/metastasis; Q, quarter; AC, adjuvant therapy; * Statistically significant (p<0.05).