FA criteria

M (SD)

Factor loadings

Communalities

Tolerance

0.36 (0.48)

.56

.32

Withdrawal symptoms

0.21 (0.41)

.81

.66

Substance taken in larger amounts and for longer periods than intended

0.25 (0.44)

.81

.66

Persistent desire or repeated unsuccessful attempts to quit

0.97 (0.16)

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Much time/activity to obtain, use, recover

0.29 (0.45)

.83

.69

Important social, occupational, or recreational activities given up or reduced

0.08 (0.28)

.71

.51

Use continues despite knowledge of adverse consequences

0.50 (0.50)

.51

.26

Use causes clinically significant impairment or distress

0.21 (0.41)

.81

.65