Outcome at 5 years
| No treatment(n = 95) | Ca(n = 85) | Et(n = 81) | Et+Ca(n = 88) | Total(n = 349) | |
|---|---|---|---|---|---|
| Ca, calcium; Et, etidronate. | |||||
| Died (n) | 15 | 20 | 8 | 14 | 57 |
| Untraceable (n) | 12 | 14 | 11 | 15 | 51 |
| Alive at 5 years (n) | 69 | 51 | 62 | 59 | 241 |
| New symptomatic vertebral and non-vertebral fractures (n) | 7 | 7 | 5 | 9 | 28 |
| New semi-quantitative vertebral fractures detected on spine radiographs (n) | 15 | 11 | 9 | 7 | 42 |
| Either of above | 19 | 15 | 13 | 14 | 61 (17.5%) |
| New fractures in those with fractures at entry | 8/27 | 7/28 | 8/34 | 5/29 | 28/118 (23.7%) |
| New fractures in those without fractures at entry | 11/68 | 8/57 | 5/47 | 9/59 | 33/231 (14.3%) |
| New fractures | |||||
| Stratum A | 8/46 | 8/42 | 7/41 | 9/42 | 32/171 (18.7%) |
| Stratum B | 10/38 | 3/33 | 5/33 | 4/33 | 22/137 (16.1%) |
| Stratum C | 1/11 | 4/10 | 1/7 | 1/13 | 7/41 (17.1%) |