Department of Biomedical Engineering, SRM University, Kattankulathur- 603203, Chennai, India.
Osteoporos Int. 2012 Nov;23(11):2661-9. doi: 10.1007/s00198-012-1898-9. Epub 2012 Feb 14.
This cross-sectional cohort emphasized the impact of heel bone mass in the South Indian population and its comparison with Nigerian ethnicity, residing in South India. Peak bone mass, however, evidenced a significant decrease of around 30% compared to that of Nigerian ethnicity.
In the South Indian population, the local folks do not seem to be well informed about the relative association of bone mass with osteoporosis. Hence, there is an acute necessity to assess the same with respect to the ethnic population, presumed to have possessed high bone mass, i.e., the Nigerian population.
The calcaneus of the right foot was measured with a quantitative ultrasound device (Sahara, Hologic Inc., USA) for a total population of 734, out of which 314 were Indian males, 348 Indian females, 41 Nigerian males, and 30 Nigerian females, whose ages ranged from 18 to 35 years.
The peak bone mass in Indian males and females is 0.507 ± 0.1 and 0.479 ± 0.1 g cm(-2), respectively, and it is 0.714 ± 0.2 and 0.682 ± 0.2 g cm(-2) with regard to Nigerian male and female populations, respectively. Indian males and females who were within the age group of 26-30 and ≤ 20 years, respectively, represented high bone mass, and the same was the situation with respect to Nigerian counterparts who were within the age group of 21-25 years. Indian and Nigerian non-vegetarian population of both the genders demonstrated a high significance value of p < 0.000001, deciphered by means of unpaired t test.
Peak bone strength was dominant in the Nigerian population compared to that of Indians. The Indian population is approximately lagging by 28-30% with respect to peak bone mass behind their Nigerian equivalents. Indian non-vegetarian male and female populations lagged by 6.15% and 6.16% behind the Indian vegetarian male and female populations, respectively.
本横断面研究强调了印度南部人群跟尼日利亚裔人群脚跟骨密度的差异，并对两者进行了比较。跟尼日利亚裔人群相比，印度南部人群的峰值骨密度明显下降了约 30%。
在印度南部人群中，当地人似乎对骨密度与骨质疏松症的关联没有太多了解。因此，有必要评估当地人群的骨密度情况，特别是那些被认为拥有较高骨密度的尼日利亚裔人群。
使用定量超声设备（美国 Hologic 公司的 Sahara）测量右足跟骨，共测量了 734 人，其中 314 名印度男性、348 名印度女性、41 名尼日利亚男性和 30 名尼日利亚女性，年龄在 18 至 35 岁之间。
印度男性和女性的峰值骨密度分别为 0.507 ± 0.1 和 0.479 ± 0.1 g/cm²，尼日利亚男性和女性的峰值骨密度分别为 0.714 ± 0.2 和 0.682 ± 0.2 g/cm²。分别处于 26-30 岁和≤20 岁年龄组的印度男性和女性代表了高骨密度，尼日利亚对应年龄组的人群也是如此。通过独立样本 t 检验，印度和尼日利亚的男女非素食人群均具有统计学意义（p<0.000001）。
跟印度人相比，尼日利亚人的峰值骨强度更高。印度人的峰值骨密度比尼日利亚人低约 28-30%。与印度素食男性和女性人群相比，印度非素食男性和女性人群分别落后 6.15%和 6.16%。
