Table 2 Characteristics of the study participants subjected to bone mass measurements in three cohorts of women measured in 1970-74, 1987-93 and 1998-99.a
From: Prevalence of osteoporosis and incidence of hip fracture in women - secular trends over 30 years
Characteristic | Cohort 1970-74 | Cohort 1987-93 | Cohort 1998-99 | P- valuec |
|---|---|---|---|---|
n = 106 | n = 175 | n = 178 | ||
Age (yr) | 67 (9.5) | 68 (10.8) | 65 (12.2) | 0.01 |
Height (cm) | 163 (6.0) | 162 (5.8) | 162 (6.9) | 0.97 |
Weight (kg) | 67 (11.0) | 66 (12.2) | 69 (12.5) | 0.08 |
Body-mass indexb | 25 (3.9) | 25 (4.4) | 26 (4.7) | 0.08 |