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a) Healthcare utilisation, b) short form (SF)-12 scores and c) work productivity and impairment, in 2006, 2008 and 2010 in all countries. Work productivity considers both absenteeism and impairment while at work due to health. ▪. not well-controlled asthma; ▪. at least well-controlled asthma. PCS: physical component summary score; MCS: mental component summary score. ***: p<0.001; #: p=0.01.
