Table 3.
Perioperative results of tattooed and non-tattooed groups by staging
| Staging | TG (n = 102) | NTG (n = 199) | P value | |
| N0 group (Stage 0 + I +IIa + IIb +IIc) | Operation time (min) | 172.70 ± 48.87 | 190.34 ± 60.18 | < 0.01 |
| Δ Hb | 0.86 ± 0.79 | 2.16 ± 1.16 | < 0.01 | |
| (n = 239) | Δ Alb | 0.40 ± 0.47 | 1.07 ± 0.39 | < 0.01 |
| Hospital stay (d) | 9.37 ± 2.91 | 11.53 ± 8.56 | < 0.01 | |
| Oral intake (d) | 1.49 ± 0.87 | 2.68 ± 1.16 | < 0.01 | |
| N1 or N2 group | Operation time (min) | 177.91 ± 56.74 | 195.69 ± 64.59 | 0.278 |
| (Stage IIIa +IIIb +IIIc) | Δ Hb | 0.50 ± 0.71 | 2.05 ± 1.27 | < 0.01 |
| (n = 62) | Δ Alb | 0.39 ± 0.41 | 1.06 ± 0.41 | < 0.01 |
| Hospital stay (d) | 10.74 ± 5.00 | 12.23 ± 8.53 | 0.449 | |
| Oral intake (d) | 1.83 ± 1.23 | 3.31 ± 3.62 | 0.064 |
TG: Tattooed group; NTG: Non-tattooed group; Hb: Hemoglobin; Alb: Albumin.