Table 3

Glycemic outcomes and DTSQ scores

Glycemic outcomesBaseline mean (SD)Intervention end mean (SD)Difference in adjusted means in FGM vs SMBG (95% CI)P value
FGM
(n=41)
SMBG
(n=35)
FGM
(n=41)
SMBG
(n=35)
 Mean glucose (mg/dL)170 (29)158 (32)146 (19)156 (31)−15 (−22 to −8)<0.001
 SD of glucose (mg/dL)46 (11)44 (11)38 (9)43 (13)−5 (−8 to −2)<0.001
 Glucose CV (%)26.9 (5.0)28.4 (5.9)26.6 (6.8)27.4 (5.1)0.2 (−1.2 to 1.7)0.762
 MAGE (mg/dL)110 (27)111 (30)91 (22)108 (33)−17 (−24 to −9)<0.001
 BGRI9.8 (3.8)9.1 (4.2)6.9 (3.4)8.4 (4.1)−1.7 (−2.8 to −0.5)0.005
 CONGA 2 hour (mg/dL)136 (25)125 (27)117 (18)124 (26)−12 (−18 to −6)<0.001
 MODD (mg/dL)41 (14)38 (10)33 (11)37 (12)−5 (−8 to −1)0.006
Glucose 70–180 mg/dL (3.9–10.0 mmol/L) within 24 hours period
 Duration (hours)14.36 (4.79)15.62 (4.27)18.71 (3.15)16.65 (4.35)2.36 (1.21 to 3.51)<0.001
Glucose <70 mg/dL (3.9 mmol/L) within 24 hours period
 Duration (hours)0.10 (0.42)0.78 (3.11)0.38 (1.10)0.41 (1.12)0.13 (−0.19 to 0.45)0.423
 AUC (hour×mg/dL)0.80 (3.17)13.84 (66.42)5.51 (19.49)3.03 (8.36)3.46 (−1.37 to 8.29)0.163
Glucose <55 mg/dL (3.1 mmol/L) within 24 hours period
 Duration (hours)0.01 (0.05)0.41 (2.16)0.16 (0.64)0.03 (0.11)0.13 (−0.03 to 0.28)0.103
 AUC (hour×mg/dL)0.09 (0.38)5.02 (27.91)1.64 (7.04)0.14 (0.53)1.51 (−0.15 to 3.17)0.077
Glucose <45 mg/dL (2.5 mmol/L) within 24 hours period
 Duration (hours)0.00 (0.02)0.30 (1.73)0.10 (0.43)0.00 (0.01)0.10 (−0.00 to 0.20)0.064
 AUC (hour×mg/dL)0.05 (0.23)4.42 (25.46)1.38 (6.12)0.02 (0.11)1.37 (−0.07 to 2.81)0.065
Time in hyperglycemia glucose level within 24 hours period
 >180 mg/dL (10.0 mmol/L) (hours)9.53 (4.91)7.60 (4.48)4.94 (3.25)6.94 (4.72)−2.66 (−3.85 to −1.48)<0.001
 >240 mg/dL (13.3 mmol/L) (hours)2.60 (2.49)2.16 (2.36)0.75 (0.83)1.86 (2.30)−1.23 (−1.73 to −0.73)<0.001
 >300 mg/dL (16.7 mmol/L) (hours)0.47 (0.92)0.33 (0.67)0.04 (0.11)0.39 (0.88)−0.39 (−0.57 to −0.20)<0.001
DTSQ scoreFGM
(n=45)
SMBG
(n=45)
FGM
(n=45)
SMBG
(n=45)
Total score31.3 (6.2)31.0 (6.7)34.9 (5.2)31.4 (6.6)3.4 (1.9 to 5.0)<0.001
Q1 current treatment4.8 (1.0)4.6 (1.4)5.1 (1.0)4.8 (1.0)0.3 (−0.0 to 0.5)0.070
Q2 frequency of hyperglycemia3.6 (1.9)3.5 (1.7)3.6 (1.6)3.2 (1.6)0.4 (0.0 to 0.9)0.047
Q3 frequency of hypoglycemia1.2 (1.5)0.8 (1.1)1.4 (1.6)1.4 (1.4)−0.0 (−0.4 to 0.5)0.938
Q4 convenience4.3 (1.2)4.5 (1.3)5.1 (1.0)4.2 (1.4)0.9 (0.6 to 1.3)<0.001
Q5 flexibility4.3 (1.2)4.4 (1.2)4.8 (1.1)4.2 (1.4)0.6 (0.3 to 1.0)<0.001
Q6 understanding4.0 (1.3)4.2 (1.2)4.6 (1.2)4.4 (1.0)0.2 (−0.1 to 0.5)0.120
Q7 recommend4.5 (1.2)4.4 (1.3)5.4 (1.0)4.6 (1.4)0.7 (0.4 to 1.1)<0.001
Q8 continue4.6 (1.2)4.5 (1.4)5.0 (1.1)4.6 (1.1)0.3 (0.0 to 0.6)0.040
  • P values <0.05 are shown in bold.

  • AUC, area under the curve; BGRI, blood glucose risk index; CONGA, continuous overlapping net glycemic action; CV, coefficient of variation; DTSQ, Diabetes Treatment Satisfaction Questionnaire; FGM, flash glucose monitoring; MAGE, mean amplitude of glycemic excursions; MODD, mean of daily difference; SMBG, self-monitoring of blood glucose.