Document Classification

Section Type: RESULTS

Text: In Groups 1 and 2, the mean age was 58 years + / - 4 (SD) and 57 + / - 5 years, respectively (P =. 702 ; 95 % CI, 1. 90-2. 81) ; mean follow-up was 48. 4 + / - 2. 5 months and 49. 3 + / - 1. 9 months, respectively (P =. 687 ; 95 % CI, 1. 186-0. 7856) ; incidence of PCO was 11 of 44 (25 %) and 12 of 35 (34. 3 %), respectively (P =. 317 ; 95 % CI, 0. 359-0. 0889) ; percentage area of PCO was 14. 3 % and 25. 6 %, respectively (P =. 006 ; 95 % CI, -19. 19 to -3. 44).