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Table 1 Sociodemographic, Reproductive, and Fracture-Associated Characteristics of BCS and PK-VF Study Cohorts

From: Vertebral fractures among breast cancer survivors in China: a cross-sectional study of prevalence and health services gaps

Variable

BCS Cohort

PK-VF Cohort

Age years

57.5 ± 4.9

57.5 ± 4.9

BMI kg/m2

24.8 ± 3.7

24.7 ± 3.2

Education ≥ High School

156/200 (78)c

91/197 (46.1)

Smoking, Ever

6/200 (3)

5/200 (2.5)

Current Alcohol Use

11/200 (5.5)

8/200 (4.0)

Menarche years

14.4 ± 2.0b

15.1 ± 2.4

Menopause years

49.4 ± 4.0

49.6 ± 3.5

Parity

 0

2/200 (1%)

2/190 (1.6)

 1

137/200 (68.5)b

102/190 (53.7)

  ≥ 2

61/200 (30.5)a

85/190 (44.7)

Fall in Past Year

31/198 (15.7)

–

Parental Fracture History

20/188 (10.6)

31/200 (15.5)

Personal Fracture History

21/200 (10.5)b

42/200 (21)

Calcium Supplement Use

96/196 (49.0)a

73/198 (36.9)

Vitamin D Supplement Use

12/200 (6.0%)

–

CTx ng/mL

0.458 ± 0.211

0.441 ± 0.199

P1NP ng/mL

61.1 ± 30.4

56.3 ± 24.6

25OHD ng/mL

20.3 ± 7.8c

13.3 ± 5.7

  1. Values for continuous variables are reported as mean ± SD and for categorical values as n/N(%)
  2. PK-VF Peking Vertebral Fracture study, BCS breast cancer survivors, CTx serum β-c-terminal telopeptide of type 1 collagen, P1NP pro-collagen type 1 N propeptide, 25OHD 25-hydroxy vitamin D, kg kilograms, m meters, ng nanograms, mL milliliters
  3. a < .05
  4. b < .01
  5. c < .001
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BMC Cancer

ISSN: 1471-2407

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