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. 2006 Oct;47(5):685–692.

Table 2.

Individual average drug consumption of participants according to the employment status and gender

No. of prescriptions per individual (NPI) for
Employment status men women ΔNPI* Effect size
Employed 0.852 1.165 0.312 0.156
Unemployed 1.417 1.239 0.178 0.067
Total 0.943 1.181 0.238 0.113
ΔNPI 0.565 0.074
Effect size 0.220 0.026

*NPI difference between genders.

†NPI difference between the employed and the unemployed.