... 1Nocturnal symptoms (numbness/tingling)Right hand 28 17 11 6Left hand 29 19 10 7 Pain (wrist)Right hand 27 18 9 2Left hand 20 14 6 4Clumsiness (difficulties in button clothing)Right hand 29 20 ... numbness, pain in wrist or fingers, and difficulty in buttoningclothing, reported either in the questionnaire or duringmedical examination. There were 4 subjects with bilat-eral symptoms and bilateral ... managers, engineers, secretaries, and economic clerks, were randomly invited into thestudy. At the baseline examination in February 1987, 93of 112 manual workers, including we lders, grinders,turners,...