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. 2023 Sep 22;15(10):5349–5361. doi: 10.21037/jtd-22-1340

Table 3. Comparative analysis of RL patients at MCC between 2010–2017 and their chronological peers with RL from the NCDB (by intention to treat) in the unmatched and matched datasets.

Variables Unmatched dataset Matched dataset 1:3
MCC RL (N=667) NCDB RL (N=15,816) SD P MCC RL (N=493) NCDB RL (N=1,479) SD P
Age, years 68.62±9.22 67.80±9.54 0.017 0.007* 68.42±9.23 68.22±9.71 0.004 0.702
Sex 0.016 0.046* 0.015 0.506
   Males 269 (40.3) 6,999 (44.3) 189 (38.3) 592 (40.0)
   Females 398 (59.7) 8,817 (55.7) 304 (61.7) 887 (60.0)
Race/ethnicity 0.069 <0.001* 0.027 0.829
   White 631 (94.6) 12,885 (81.5) 463 (93.9) 1,391 (94.1)
   Black 15 (2.2) 1,359 (8.6) 14 (2.8) 31 (2.1)
   Hispanic 6 (0.9) 879 (5.6) 5 (1.0) 20 (1.4)
   Asian 10 (1.5) 343 (2.2) 8 (1.6) 29 (2.0)
   Other 5 (0.7) 350 (2.2) 3 (0.6) 8 (0.5)
Charlson score 0.031 <0.001* 0.022 0.813
   0 348 (52.2) 8,278 (52.3) 255 (51.7) 775 (52.4)
   1 188 (28.2) 5,056 (32.0) 143 (29.0) 409 (27.7)
   2 80 (12.0) 1,760 (11.1) 57 (11.6) 190 (12.8)
   3+ 51 (7.6) 722 (4.6) 38 (7.7) 105 (7.1)
Histology 0.073 <0.001* 0.013 0.958
   Adenocarcinoma 456 (68.4) 9,088 (57.5) 331 (67.1) 1,011 (68.4)
   SCC 124 (18.6) 3,575 (22.6) 92 (18.7) 267 (18.1)
   Neuroendocrine 76 (11.4) 1,245 (7.9) 59 (12.0) 167 (11.3)
   Other 11 (1.6) 1,908 (12.1) 11 (2.2) 34 (2.3)
Grade 0.063 <0.001* 0.02 0.845
   Well difference 198 (29.7) 3,140 (19.9) 159 (32.3) 490 (33.1)
   Moderately difference 286 (42.9) 6,838 (43.2) 205 (41.6) 632 (42.7)
   Poorly difference 168 (25.2) 4,422 (28.0) 117 (23.7) 324 (21.9)
   Missing 15 (2.2) 1,416 (9.0) 12 (2.4) 33 (2.2)
Side 0.003 0.891
   Right 430 (64.5) 9,706 (61.4) 321 (65.1) 968 (65.4)
   Left 233 (34.9) 6,110 (38.6) 172 (34.9) 511 (34.6)
   Missing 4 (0.6) 0 (0.0) 0 (0.0) 0 (0.0)
Lobe 0.035 <0.001* 0.01 0.907
   Upper 411 (61.6) 8,914 (56.4) 307 (62.3) 897 (60.6)
   Middle 58 (8.7) 933 (5.9) 45 (9.1) 134 (9.1)
   Lower 198 (29.7) 5,969 (37.7) 141 (28.6) 448 (30.3)
T stage 0.364 <0.001* 0.069 0.1
   Tis 1 (0.1) 65 (0.4) 1 (0.2) 3 (0.2)
   T1 363 (54.4) 9,411 (59.5) 360 (73.0) 1,090 (73.7)
   T2 54 (8.1) 3,849 (24.3) 53 (10.8) 204 (13.8)
   T3 44 (6.6) 692 (4.4) 44 (8.9) 119 (8.0)
   T4 183 (27.4) 142 (0.9) 13 (2.6) 43 (2.9)
   Tx 22 (3.3) 1,657 (10.5) 22 (4.5) 20 (1.4)
N stage 0.112 <0.001* 0.061 0.103
   N0 512 (76.8) 13,242 (83.7) 411 (83.4) 1,242 (84.0)
   N1 62 (9.3) 801 (5.1) 34 (6.9) 110 (7.4)
   N2 93 (13.9) 655 (4.1) 48 (9.7) 112 (7.6)
   Nx 0 (0.0) 1,118 (7.1) 0 (0.0) 15 (1.0)
TNM stage 0.14 <0.001* 0.059 0.195
   Stage 0 0 (0.0) 66 (0.4) 0 (0.0) 0 (0.0)
   Stage I 410 (61.5) 11,397 (72.1) 312 (63.3) 979 (66.2)
   Stage II 131 (19.6) 1,715 (10.8) 101 (20.5) 284 (19.2)
   Stage III 123 (18.4) 882 (5.6) 78 (15.8) 195 (13.2)
   Stage IV 3 (0.4) 5 (0.0) 2 (0.4) 0 (0.0)
   Unstageable 0 (0.0) 1,751 (11.1) 0 (0.0) 21 (1.4)
Neoadjuvant systemic 15 (2.2) 476 (3.0) 0.009 0.258 11 (2.2) 29 (2.0) 0.008 0.712
Neoadjuvant radiation 3 (0.4) 203 (1.3) 0.015 0.058 3 (0.6) 3 (0.2) 0.032 0.157

Data are shown as mean ± SD or number (percentage). *, statistically significant. RL, robotic lobectomy; MCC, Moffitt Cancer Center; NCDB, National Cancer Database; SD, standard difference; SCC, squamous cell carcinoma.