Table 1 Population characteristics
From: Quantitative ultrasound assessment of the effect of parity on bone mineral density in females
Multiparous | Nulliparous | Total population | |
|---|---|---|---|
Number of volunteers | 51 | 51 | 102 |
Age (years) | 35 ± 4; range: 29–45; median: 35; Q1: 33; Q3: 40 | 30 ± 4; range 18–39; median: 21; median: 21; Q1: 21; Q3: 23 | 32 ± 4; range 18–45 |
Height (cm) | 159 ± 6 | 160 ± 7 | 160 ± 7 |
Weight (kg) | 72 ± 12 | 61 ± 15 | 66 ± 14 |
BMI (kg/m2) | 29 ± 5 | 24 ± 5 | 27 ± 5 |
Number of children | |||
2 children | 45% (23/51) | 0% | 23% (23/102) |
3 children | 55% (28/51) | 0% | 27% (28/102) |
Breastfed their children | 84% (43/51) | 0% | 42% (43/102) |
Family history of osteoporosis | 22% (11/51) | 12% (6/51) | 17% (17/102) |