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Table 2 Characteristics of patients and surgery according to three groups

From: Breast cancer robotic nipple sparing mastectomy: evaluation of several surgical procedures and learning curve

  Group 1 Group 2 Group 3 Total
Age Median 49.5 57.0 50.0 51
Mean 52.4 51.0 45.3 51.2
CI 95% 45.9–58.9 29.8–72.2 14–76.8 45.75–56.67
Weight Median 60.5 57.0 58.0 59
Mean 59.1 62.8 58.3 59.79
CI 95% 55.6–62.6 41.0–84.6 44.6–72.0 55.87–63.72
Patient size Median 164.5 164 168 164.5
Mean 163.8 164.6 166 164.25
CI 95% 160.1–167.5 160.2–169.0 152.9–179.1 161.7–166.8
BMI Median 22.25 21.19 20.7 21.58
Mean 22.0 23.0 21.1 22.11
CI 95% 21.0–23.0 16.4–29.7 17.8–24.5 20.9–23.3
Anesthesia
time
Median 448.5 349 375 431
Mean 436.6 393.2 344.3 416
CI 95% 394–479 242–544 99.3–589 376.7–455.4
Surgical
time
Median 370.5 265 285 349
Mean 372.5 303.4 257.7 343.75
CI 95% 330–415 167–439 24–491 304.0–383.5
Post-operative
hospitalization
Median 4 3.0 2.5 3.5
Mean 3.88 2.8 2.75 3.5
CI 95% 3.1–4.65 1.2–4.4 1.23–4.27 2.94–4.14
Mastectomy
weight
Median 237.5 194 350.5 237.5
Mean 303 250 351.5 288.9
CI 95% 227–378 23.5–477 65.4–638 228–350
Surgical time
NSM + RLDF
Median 390 360 335 351
Mean 374 364 324 362
CI 95% 329–419 114–613 280–368 329–395
Anesthesia time
NSM + RLDF
Median 455 457 408 442
Mean 440 460 413 437
CI 95% 395–485 179–741 362–464 403–470
  1. Abbreviations: BMI body mass index, NSM nipple sparing mastectomy, RLDF robotic latissimus dorsi flap