TY - JOUR T1 - Comparison of different predicted and lower limit of normal (LLN) values in ventilation disorders detection JF - European Respiratory Journal JO - Eur Respir J VL - 40 IS - Suppl 56 SP - P3202 AU - Marina Kameneva AU - Artem Tishkov AU - Alina Bykhova AU - Vasiliy Trofimov Y1 - 2012/09/01 UR - http://erj.ersjournals.com/content/40/Suppl_56/P3202.abstract N2 - Aim: To estimate the agreement of Russian equations (Klement), ECCS and NhanesIII spirometry evaluating systems in determining the types of ventilation abnormalities by predicted and LLN (5th percentile) values.Materials and methods: The study enrolled 7,779 Caucasians examined in pulmonary clinics of St.Petersburg Pavlov's State Medical University in 2005-2011: 3,584 males (mean age 47.40±0.25, mean height 175.44±0.18) and 4,195 females (mean age 49.66±0.20, mean height 162.29±0.10). The cases that can not be classified as norm, obstruction or restriction, were accumulated in the "mixed" group.View this table:Conclusion: The best agreement was obtained by ECCS and Klement systems both in predicted values and LLN. NhanesIII significantly differs from both Klement and ECCS in LLN for all groups. In predicted values these three systems agreed in obstruction but still generally disagree in norm and restriction. ER -