Twiss J, McKenna S, Rouse M. Using Rasch analysis to co-calibrate scores from outcome measures specific to asthma (ALIS), chronic obstructive pulmonary disease (LCOPD) and pulmonary hypertension (CAMPHOR). Poster presented at the 2013 ISPOR 16th Annual European Congress; November 2013. Dublin, Ireland. [abstract] Value Health. 2013 Nov; 16(7):A605. doi: 10.1016/j.jval.2013.08.1724
McKenna SP, Twiss J, Crawford SR, Oprandi NC, Tammaru M, Miravitlles M. The living with chronic obstructive pulmonary disease scale was successfully adapted for use in southern european (Italian and Spanish) and eastern european (Russian) cultures. J Clin Epidemiol. 2012 Aug;65(8):906-14.
Crawford SR, McKenna SP, Twiss J, Tammaru M, Oprandi NC. Further developments of the Asthma Life Impact Scale (ALIS). Poster presented at the 2011 ISPOR 14th Annual European Congress; November 2011. [abstract] Value Health. 2011 Nov; 14(7):A497. doi: 10.1016/j.jval.2011.08.1440
Crawford SR, McKenna SP, Twiss J, Tammaru M, Oprandi NC. Further developments of the Living with Chronic Obstructive Pulmonary Disease (LCOPD). Poster presented at the 2011 ISPOR 14th Annual European Congress; November 2011. [abstract] Value Health. 2011 Nov; 14(7):A497.
McKenna SP, Meads DM, Doward LC, Twiss J, Pokrzywinski R, Revicki D, Hunter CJ, Glendenning GA. Development and validation of the living with chronic obstructive pulmonary disease questionnaire. Qual Life Res. 2011 Sep 1;20(7):1043-52.
Twiss J, McKenna SP, Crawford SR, Tammaru M, Oprandi NC. Adapting the Asthma Life Impact Scale (ALIS) for use in Southern European (Italian) and Eastern European (Russian) cultures. J Med Econ. 2011;14(6):729-38. doi: 10.3111/13696998.2011.615356