a. Children and adults did not experience falls differently, but proportionate to their total size.<br/><br/>b. Children and adults did not experience falls differently, but do experience falls proportionate to their total size.<br/><br/>c. Children and adults did not experience falls differently, but experience falls proportionate to their total size.<br/><br/>Which do you prefer? I feel a is most concise, but is slightly less clear as a result.<br/><br/>Thanks