highly significantp < 0.001
Highly significant differences were observed between the change in LSaBMD z-scores between the placebo and risedronate groups; 0.274, (95% CI 0.061, 0.487; p < 0.001) and between the risedronate and the alfacalcidol groups; 0.326 (95% CI 0.109, 0.543; p < 0.001) but not between the placebo and alfacalcidol groups; − 0.052 (− 0.257, 0.153).