Yes, osteopenia/osteoporosis is more common in post-menopausal women than in men. Osteoporosis runs in my wife's family, and several years ago she was found to be osteopenic after breaking several ribs from coughing. Lab work later showed she had hyperparathyroidism with very high serum calcium levels, which was frustrating since she had been taking calcium supplements for the osteopenia. Sometimes you just can't win!