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Table 1 Demographics and operating outcomes of study population

From: Risk factors for intraoperative hemorrhage of Type I neurofibromatosis

Variable

N = 94

Age (years)

19.83 ± 10.62

Weight (kg)

51.67 ± 19.37

Area of excision(cm2)

225.70 ± 750.43

Operative time (min)

110.27 ± 56.56

Hospital stay (day)

10.02 ± 5.55

Estimated blood loss (ml)

452.35 ± 1412.10

Need for transfusion

8 (8.5)

Sex

 Female

48 (51.1)

 Male

46 (48.9)

Surgical site

 Scalp and face or neck

70 (74.5)

 Trunk and limbs

24 (25.5)

Classification

 Cutaneous

30 (31.9)

 Plexiform

64 (68.1)

Nationality (Han)

85 (90.4)

Primary surgical

73 (77.7)

Single lesion

32 (34.0)

Other symptoms

 Café-au-lait spots

81 (86.2)

 Organ deformation

60 (63.8)

 Dyskinesia

22 (23.4)

 Local pain

7 (7.5)

 Ocular symptoms

17 (18.1)

  1. All values are expressed as mean (± standard deviation) or number (%)