Prevalence and associations of symptoms of upper extremities, repetitive strain injuries (RSI) and 'RSI-like condition'. A cross sectional study of bank workers in Northeast Brazil

Table 3 Estimated prevalence of RSI in the population based on the validity of the screening instrument

Screening Questionnaire	Clinical diagnosis		Total	Estimated prevalence
	+	-
+	78	40	118
-	9	268	277
Total	87	308	395	87/395 = 0.22

ISSN: 1471-2458