Investigation of the prevalence of osteoporosis and the reference range of SOS in bone densitometry among 4297 middle-aged and older adults in Zhejiang Province

Objective The study aimed to investigate the prevalence of osteoporosis and the reference range of SOS in bone densitometry among middle-aged and older adults in Zhejiang Province, so as to provide references for the tertiary prevention of osteoporosis. Methods Ultrasound bone densitometry was conducted on the distal radius of 4297 middle-aged and older adults between October of 2013 and June of 2014. The results were analyzed by SPSS19.0 to assess the prevalence of osteoporosis and the reference range of SOS among the subjects. Results(1) The prevalence of osteoporosis among the female and male subjects was46.27% and 17.35%, respectively. The prevalence among female over the age of 55 was significantly higher than that among female(P0.05); and the prevalence among female was shown to increase with age(P0.05).(2) Difference in SOS value was statistically significant between healthy middle-aged and older male and female(P0.05); and SOS and T values among female were shown to correlate with age(P0.05).(3) 95% reference intervals of SOS among middle-aged and elderly female and male were(3940.38,4522.22) m/s and(3905.27, 4474.15) m/s, respectively. Conclusion The prevalence of osteoporosis in middle-aged and elderly women is higher than that in men, and SOS and T values of middle-aged women gradually declines with age.