Table 1 —

Reliability and stability of primary dependent variables across the 6- and 1-month pre-BGAT-2 repeated baseline

Variable6- and 1-month pre-BGATCorrelationsContrasts
Improved recognition of BG levels*
 % Detection of low BG36 ± 32; 34 ± 31F = 0.64, P < 0.001t = 0.9, NS
 % Detection of high BG52 ± 25; 49 ± 26F = 0.65, P < 0.001t = 1.1, NS
 % Accurate estimates39 ± 13; 38 ± 13F = 0.72, P < 0.001t = 0.1, NS
Reduced extreme BG fluctuations
 BG risk index14.1 ± 5.1; 13.7 ± 4.9F = 0.55, P < 0.001t = 0.7, NS
 HbA110.2 ± 2.1; 10.2 ± 2.0F = 0.85, P < 0.001t = 0.5, NS
Improved judgement
 % Decision to treat when low49 ± 30; 55 ± 33F = 0.34, P < 0.003t = 1.3, NS
 % Decision not to drive when low52 ± 38; 47 ± 38F = 0.50, P < 0.002t = 0.8, NS
Reduction of negative consequences§
 DKA (total no.)4; 3
 Severe hypoglycemia1.4 ± 2.1; 1.8 ± 1.9F = 0.77, P < 0.001t = 1.7, NS
 Motor vehicle violations0.1 ± 0.3; 0.08 ± 0.2F = 0.45, P < 0.001t = 0.2, NS
Change in psychological parameters
 Hypoglycemia fear survey–worry23.7 ± 10.3; 20.2 ± 10.1F = 0.76, P < 0.001t = 4.3, P < 0.01
 DQOL–impact46.7 ± 10.5; 45.8 ± 9.0F = 0.57, P < 0.001t = 0.9, NS
 DQOL–worry19.4 ± 8.6; 17.1 ± 8.1F = 0.69, P < 0.001t = 3.1, P < 0.01
 BDI–total6.1 ± 5.4; 7.7 ± 6.8F = 0.67, P < 0.001t = 2.8, P < 0.01
 DAS–diabetes conflict19.8 ± 11.2; 18.4 ± 8.7F = 0.53, P < 0.001t = 1.3, NS
 KnowledgeNA; 43.2 ± 4.2
  • Data are means ± SD unless otherwise indicated.

  • *

    * F = 0.77, P = 0.52, MANOVA;

  • no MANOVA performed because only one variable, BG risk index, was hypothesized to change;

  • F = 2.4, P = 0.1, MANOVA;

  • §

    § F = 0.87, P = 0.46, MANOVA;

  • F = 5.6, P < 0.005, MANOVA. DAS, Dyadic Adjustment Scale; DQOL, Daily Quality of Life; NA, not available.