Table 2.

Frequency of participant comments (N = 172) about preferred text message immunization reminder information.

Category ( a priori )		Example	Freq (%)
	Date immunizations are due	“When appointment is,” “Appointment tomorrow at 9:15,” “When shots are due.”	50 (29.1)
	Other information	“Location” and “Use numbers—9 months vs nine months.”	31 (18.0)
	General reminder	“Immunization due soon” and “Time to schedule an appointment for shots.”	26 (15.1)
	Child’s name	“Which child” and “Name of child.”	21 (12.2)
	Name of vaccine	“What type of shot” and “Names of vaccines.”	16 (9.3)
	Clinic number	“Phone number for the Doctor” and “If questions contact at this number.”	11 (6.4)
	Child’s age	“Time frame—like 6 month immunizations” and “Baby’s age.”	9 (5.2)
	Doctor’s name	“Doctor’s name” and “Dr. [name].”	3 (1.7)
	Number of shots	“How many shots.”	2 (1.2)
	Name of vaccine-preventable disease	“What the shot prevents.”	1 (0.6)
	Side effects	“Side effects so you can be prepared for after the appointment.”	1 (0.6)
	What the disease can do to my child	“Risks of the disease.”	1 (0.6)
	Full immunization schedule		0 (0)
	How the disease spreads		0 (0)
	Total number of specific vaccine needed		0 (0)
	Who is at risk?		0 (0)
	Where your child is in the specific vaccine series		0 (0)