title: Postpartum SMS reminders to women who have experienced gestational diabetes to test for Type 2 diabetes: the DIAMIND randomized trial.
abstract: OBJECTIVE
  This parallel group randomized controlled trial assessed whether an SMS reminder system for women, after gestational diabetes, would increase their attendance for an oral glucose tolerance test (OGTT) by six months postpartum.
  
  
  METHODS
  Women were eligible for inclusion if they were diagnosed with gestational diabetes in their recent pregnancy, had a mobile phone and normal blood glucose profile prior to postnatal discharge from the Women's and Children's Hospital, Adelaide. A computer-generated random number sequence and telephone randomization were used. Two hundred and seventy-six women were randomized. Women in the six-week group (n = 140) were sent a text reminder to attend for an OGTT at six weeks postpartum, with further reminders at three and six months if required. Women in the control group (n = 136) received one text reminder at six months postpartum. Blinding was not feasible. The primary outcome was OGTT attendance within six months postpartum.
  
  
  RESULTS
  Women in the six-week group did not increase their attendance for an OGTT within six months postpartum compared with women in the control group, 104 (77.6% of 134) versus 103 (76.8% of 134), relative risk (RR) 1.01, 95% confidence interval (CI) 0.89-1.15.
  
  
  CONCLUSIONS
  The SMS reminder system did not increase postpartum OGTT, fasting plasma glucose or HbA1c completion, although high rates of test completion were measured in both groups. Further research is required into factors influencing attendance for postpartum testing from the perspective of women, and into optimal counselling relating to Type 2 diabetes risk in the postpartum period for increasing postpartum glucose testing rates.
authors: Robinson Research Institute, The University of Adelaide, Australia.
authors: E M
authors: EM
authors: Van Ryswyk
authors: Robinson Research Institute, The University of Adelaide, Australia.
authors: P F
authors: PF
authors: Middleton
authors: Robinson Research Institute, The University of Adelaide, Australia.
authors: W M
authors: WM
authors: Hague
authors: Robinson Research Institute, The University of Adelaide, Australia.|Liggins Institute, The University of Auckland, New Zealand.
authors: C A
authors: CA
authors: Crowther
mesh_terms: D000328:Adult; D040421:Cell Phone; D003266:Continuity of Patient Care; D003924:Diabetes Mellitus, Type 2 / Q000097:blood / Q000175:diagnosis*; D016640:Diabetes, Gestational / Q000097:blood* / Q000453:epidemiology / Q000534:rehabilitation*; D005260:Female; D005951:Glucose Tolerance Test; D006801:Humans; D049590:Postpartum Period / Q000097:blood*; D011247:Pregnancy; D017010:Reminder Systems; D017216:Telemedicine / Q000379:methods; D060145:Text Messaging