passages.id: split_8_test_57_passage
passages.type: progene_text
passages.text: COPD patients showed a mean forced expiratory volume in one second ( FEV1 ) of 60 + / - 9 % predicted , a higher concentration of mitochondria ( n ( mit ) ) in their diaphragm than controls ( 0.62 +/- 0.16 versus 0.46 +/- 0.16 mitochondrial transections (mt) x microm(-2) , p < 0.05 ) .