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Table 1 Baseline characteristics of patient who received IORT*

From: Intraoperative radiation therapy for early stage breast cancer

Variables

Statistics

Age—years

 Mean

56.4 ± 7.7

 Median (IQR)

56 (50, 62)

Sex—no. (%)

 Female

252 (100)

 Male

0

Weight—Kg

70.40 ± 11.31

Height—Cm

158.69 ± 6.81

BMI—Kg/m2

27.96 ± 4.29

Age of menstruation—years

13.3 ± 1.4

Age at first pregnancy—years

21.7 ± 5.4

Number of pregnancy—no. (%)

 1

18 (7.6)

 2

56 (23.6)

 3

62 (26.2)

 4

42 (17.7)

 5 or more

74 (24.9)

Menopause—no. (%)

 Yes

191 (76.1)

 No

50 (19.9)

 Not sure

10 (4)

Age at menopause—years

48.9 ± 4.5

Oral contraceptive use—no. (%)

 Yes

154 (61.1)

 No

98 (38.9)

Hormone replacement therapy use—no. (%)

 Yes

5 (2.1)

 No

235 (97.9)

Diabetes—no. (%)

 Yes

46 (18.3)

 No

206 (81.7)

Hypertension—no. (%)

 Yes

71 (28.2)

 No

181 (71.8)

Hypercholestrolemia—no. (%)

 Yes

73 (29)

 No

179 (71)

Hypothyroidism—no. (%)

 Yes

39)15.5)

 No

213 (84.5)

Hyperthyroidism—no. (%)

 Yes

6 (2.4)

 No

246 (97.6)

Family history of breast cancer—no. (%)

 Yes

83 (32.9)

 No

169 (67.1)

Cigarette use—no. (%)

 Yes

1 (0.4)

 No

251 (99.6)

Waterpipe use—no. (%)

 Yes

24 (9.5)

 No

228 (90.5)

Alcohol use—no. (%)

 Yes

1 (0.4)

 No

251 (99.6)

Breast side involvement—no. (%)

 Right

121 (48)

 Left

131 (52)

  1. IORT intraoperative radiation therapy, BMI body mass index
  2. *All plus-minus values are means and standard deviations unless stated otherwise