RESULTS	The correlation coefficient between URP and MUCP was 0.31 ( 95 % CI 0.19-1 , P < 0.0001 ) ; between URP and LPP was 0.28 ( 95 % CI 0.12-1 , P = 0.003 ) ; and between MUCP and LPP was 0.14 ( 95 % CI-0 .04 -1 , P = 0.101 ) .\