Table 7.

Two-way SMS messages sent, timing, and frequency

Message Content		First Response n (%)	Second Response n (%)	Frequency/Schedule
In the past 4 weeks have you had 5 or more drinks of alcohol within a couple of hours (e.g., 2–4 hours)? Text 1 = Yes, 2 = No, 3 = Don’t remember				Asked in baseline survey and again via text on intervention day 36.
	Yes	4 (8%)
	No	13 (25%)
	Don’t remember	1 (2%)
	No response	34 (65%)
In the past 4 weeks have you had sex without a condom with any of your sex partner(s)? Text 1 = Yes, 2 = No, 3 = Don’t remember				Asked in baseline survey and again via text on intervention day 36 and 64.
	Yes	7 (13%)	4 (8%)
	No	14 (27%)	6 (12%)
	Don’t remember	0 (0%)	0 (0%)
	No response	31 (60%)	42 (80%)
In the past 4 weeks have you used alcohol or drugs before or during sex? Text 1 = Yes, 2 = No, 3 = Don’t remember				Asked in baseline survey and again via text on intervention day 36 and 64.
	Yes	6 (12%)	2 (4%)
	No	16 (30%)	12 (23%)
	Don’t remember	0 (0%)	0 (0%)
	No response	30 (58%)	38 (73%)
How often do you read the text messages you get from HB a ? Text 1 = Always, 2 = Usually, 3 = Sometimes, 4 = Never				Asked of all participants on intervention day 38.
	Always	26 (50%)
	Usually	2 (4%)
	Sometimes	0 (0%)
	Never	0 (0%)
	No response	24 (46%)
Do you like the messages you are receiving from HB a ? Text 1 = Yes, 2 = No				Asked of all participants on intervention day 40.
	Yes	16 (30%)
	No	5 (10%)
	No response	31 (60%)
How often are the messages sent at the right times? Text 1 = Always, 2 = Usually, 3 = Sometimes, 4 = Never
	Always	5 (10%)
	Usually	8 (15%)
	Sometimes	9 (17%)
	Never	3 (6%)
	No response	27 (52%)
How do you feel about the number of text messages you get from HB a ? Text 1 = Too many, 2 = About right, 3 = Not enough				Asked of all participants on intervention day 47.
	Too many	7 (13%)
	About right	16 (31%)
	Not enough	3 (6%)
	No response	26 (50%)
Are the message topics you get from HB a interesting to you? Text 1 = Very, 2 = Somewhat, 3 = A little, 4 = Not at all				Asked of all participants on intervention day 52.
	Very	5 (10%)
	Somewhat	8 (15%)
	A little	9 (17%)
	Not at all	4 (8%)
	No response	26 (50%)
How often do you use the info in the text messages from HB a ? Text 1 = Always, 2 = Usually, 3 = Sometimes, 4 = Never				Asked of all participants on intervention day 54.
	Always	3 (6%)
	Usually	2 (4%)
	Sometimes	15 (29%)
	Never	7 (13%)
	No response	25 (48%)
How helpful are the text messages you get from HBHC a ? Text 1 = Very, 2 = Somewhat, 3 = A little, 4 = Not at all				Asked of all participants on intervention day 59.
	Very	11 (21%)
	Somewhat	8 (15%)
	A little	6 (12%)
	Not at all	3 (6%)
	No response	24 (46%)
Do you feel like the HB a messages were written for you? Text 1 = Yes, 2 = No				Asked of all participants on intervention day 61.
	Yes	15 (29%)
	No	13 (25%)
	No response	24 (46%)

^a HBHC, Howard Brown Health Center.