Randomised study within a trial (SWAT) to evaluate personalised versus standard text message prompts for increasing trial participant response to postal questionnaires (PROMPTS)

[1] Edwards P(2002)Increasing response rates to postal questionnaires: systematic review Bmj. 324 1183-461

[2] Roberts I(2006)Maximising response to postal questionnaires--a systematic review of randomised trials in health research BMC Med Res Methodol. 6 5-785

[3] Clarke M(2014)Strategies to improve retention in randomised trials: a Cochrane systematic review and meta-analysis BMJ Open. 4 458-26

[4] DiGuiseppi C(2008)How much loss to follow-up is acceptable in long-term randomised trials and prospective studies? Arch Dis Child. 93 781-29

[5] Pratap S(2002)Sample size slippages in randomised trials: exclusions and the lost and wayward Lancet. 359 e107-1450

[6] Wentz R(2015)Developing and pretesting a text messaging program for health behavior change: recommended steps JMIR Mhealth Uhealth 3 21-273

[7] Kwan I(2012)Use of mobile telephone short message service as a reminder: the effect on patient attendance Int Dent J. 62 23-730

[8] Nakash RA(2014)Effectiveness of text message reminders on nonattendance of outpatient clinic appointments in three different specialties: a randomized controlled trial in a Saudi Hospital Journal of Taibah University Medical Sciences. 9 1446-436

[9] Hutton JL(2015)Electronic prompts significantly increase response rates to postal questionnaires: a randomized trial within a randomized trial and meta-analysis J Clin Epidemiol. 68 265-979

[10] Jørstad-Stein EC(2010)Three controlled trials of interventions to increase recruitment to a randomized controlled trial of mobile phone based smoking cessation support Clin Trials. 7 718-514

[1] Edwards P(2002)Increasing response rates to postal questionnaires: systematic review Bmj. 324 1183-461

[2] Roberts I(2006)Maximising response to postal questionnaires--a systematic review of randomised trials in health research BMC Med Res Methodol. 6 5-785

[3] Clarke M(2014)Strategies to improve retention in randomised trials: a Cochrane systematic review and meta-analysis BMJ Open. 4 458-26

[4] DiGuiseppi C(2008)How much loss to follow-up is acceptable in long-term randomised trials and prospective studies? Arch Dis Child. 93 781-29

[5] Pratap S(2002)Sample size slippages in randomised trials: exclusions and the lost and wayward Lancet. 359 e107-1450

[6] Wentz R(2015)Developing and pretesting a text messaging program for health behavior change: recommended steps JMIR Mhealth Uhealth 3 21-273

[7] Kwan I(2012)Use of mobile telephone short message service as a reminder: the effect on patient attendance Int Dent J. 62 23-730

[8] Nakash RA(2014)Effectiveness of text message reminders on nonattendance of outpatient clinic appointments in three different specialties: a randomized controlled trial in a Saudi Hospital Journal of Taibah University Medical Sciences. 9 1446-436

[9] Hutton JL(2015)Electronic prompts significantly increase response rates to postal questionnaires: a randomized trial within a randomized trial and meta-analysis J Clin Epidemiol. 68 265-979

[10] Jørstad-Stein EC(2010)Three controlled trials of interventions to increase recruitment to a randomized controlled trial of mobile phone based smoking cessation support Clin Trials. 7 718-514