Research Article

What Accounts for Rib Fractures in Older Adults?

Table 1

Characteristics at baseline among 351 Rochester, Minnesota, women and 348 Rochester men followed for rib fracture.

Risk factorWomenMen

Age (years), mean ± SD54.9 ± 19.855.4 ± 19.6
Prior osteoporotic fracture, N (%)47 (13%)36 (10%)
Prior rib fracture, N (%)20 (6%)41 (12%)
Alcohol consumption, N (%)299 (85%)315 (91%)
Heavy alcohol use, N (%)24 (7%)66 (19%)
Ever smoked cigarettes, N (%)154 (44%)194 (56%)
Body mass index (kg/m2)26.1 ± 5.4627.3 ± 4.41
Physical activity (kcal/week)24,534 ± 714330,997 ± 10,581
Risk factors for 2°osteoporosis, N (%)139 (40%)134 (39%)
Risk factors for falling, N (%)274 (78%)172 (49%)
Any fall in past year, N (%)175 (50%)157 (46%)
Femoral neck BMD, mean ± SD0.75 ± 0.150.86 ± 0.15
Lumbar spine BMD, mean ± SD1.01 ± 0.161.12 ± 0.18
Ultradistal radius BMD, mean ± SD0.39 ± 0.080.49 ± 0.08
Ribs BMD, mean ± SD0.61 ± 0.080.72 ± 0.090

Hip, spine, or wrist fracture due to only moderate trauma.
BMD, bone mineral density.
2°, secondary. Note: percents are out of non-missing values.