Risikobegrænsningen var større hos kvinder, som allerede tidligere havde haft en brækket hvirvel, og hos kvinder, hvis score for knoglemassen i rygsøjlen allerede var lav ved undersøgelsens begyndelse, hvilket viser, at de har en mere skrøbelig rygsøjle.
The risk reduction was higher in women who already had a fractured vertebra in the past, and in women whose score for spine bone density was already low at the start of the study, indicating that they have a more fragile spine.