Table 1.

Characteristics of Mobile Phone Use among People who Inject Drugs (PWID) in Fresno, California (N=494).

	n	%
Currently have a cell phone	380	77
Have had current cell phone for
Less than 1 month	149	39
Less than 3 months	64	18
Less than 6 months	43	11
Less than 1 year	52	14
More than 1 year	71	19
Have had current phone number for
Less than 1 month	148	39
Less than 3 months	63	17
Less than 6 months	39	10
Less than 1 year	45	12
More than 1 year	81	21
Current phone is a smart phone	330	87
Current phone has
Both, voice and internet service	289	88
Voice service only	33	10
Neither voice nor internet service	8	2
Internet service only	1	0
Phone is completely free of charge	254	67