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Table 1 Characteristics of the participants in different intervention arms.

From: Hand washing with soap and water together with behavioural recommendations prevents infections in common work environment: an open cluster-randomized trial

INTERVENTION ARM N OF INITIAL PARTICIPANTS AGE RANGE (STD) MEAN AGE PROPORTION OF THOSE WITH CHILDREN IN DAY CARE MEAN OF RELATIVE RISK SUM
IR 1 257 22-64 (10.2) 45.1 0.118 63.9
IR2 202 20-63 (10.1) 42.7 0.128 55.0
CONTROL 224 21-62 (11.1) 42.8 0.144 59.9