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Table 1 Clinico-demographic characteristic of study subjects

From: Bone mineral density, body mass index and cigarette smoking among Iranian women: implications for prevention

 

Pre-menopause

Post-menopause

p value

N

52

38

 

Age (years)*

43.6 ± 4.7

55.18 ± 7.4

<0.001a

Height (cm)*

157.7 ± 5.5

155 ± 5.7

0.027a

Weight (kg)*

70.8 ± 16.4

68.9 ± 10.3

0.530a

BMI (kg/m2)*

28.5 ± 6.9

28.7 ± 4.3

0.869a

LSBMD (g/cm2)*

1.19 ± 0.15

1.04 ± 0.16

<0.001a

FNBMD (g/cm2)*

0.97 ± 0.12

0.87 ± 0.11

<0.001a

Dairy calcium intake (mg/day)*

410 ± 262

498 ± 306

0.147a

Age at menopause*

-

47.9 ± 4.02

-

Parity†

2 (2, 3)

3 (2, 4)

0.004b

Regular exercise§

12 (23.1)

11(28.9)

0.528c

Smoking status

   

Current smokers

15.4 (8)

21.1 (8)

0.487c

Ex-smokers

21.2 (11)

23.7 (9)

0.775c

Duration of smoking (years)§

  

0.155c

≤ 5

4 (33.3)

1 (9.1)

 

> 5

8 (66.7)

10 (90.9)

 

Alcohol use§

7 (13.5)

3 (7.9)

0.407c

  1. *Mean ± SD; †median (interquartile range); § n (%).
  2. aunpaired t-test, bMann-Whitney U test, cChi-square test.
  3. BMI, body mass index; LSBMD, lumbar spine bone mineral density; FNBMD, femoral neck bone mineral density.
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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