Table 2 Hemoglobin A1c and weight measures.

From: Predicting changes in glycemic control among adults with prediabetes from activity patterns collected by wearable devices

Outcome

Measure

Waist-Worn Wearable

Wrist-Worn Wearable

Hemoglobin A1c (HbA1c)

Baseline

  

Patients, N (%)

93 (100.0)

93 (100.0)

HbA1c, mean (SD)

6.0 (0.2)

6.1 (0.2)

HbA1c < 5.7, N (%)

0 (0.0)

0 (0.0)

HbA1c 5.7 to 5.9, N (%)

35 (37.6)

29 (31.2)

HbA1c 6.0 to 6.4, N (%)

58 (62.4)

64 (68.8)

HbA1c > 6.4, N (%)

0 (0.0)

0 (0.0)

6 Months

  

Patients, n (%)

74 (79.6)

73 (78.5)

HbA1c, mean (SD)

6.0 (0.3)

6.1 (0.3)

HbA1c < 5.7, N (%)

6 (8.1)

2 (2.7)

HbA1c 5.7 to 5.9, N (%)

24 (32.4)

23 (31.5)

HbA1c 6.0 to 6.4, N (%)

41 (55.4)

42 (57.5)

HbA1c > 6.4, N (%)

3 (4.1)

6 (8.2)

Proportion with HbA1c Increase of ≥0.3, N (%)

5 (6.8)

11 (15.1)

Proportion with HbA1c Decrease of ≥0.3, N (%)

14 (18.9)

12 (16.4)

Weight, lbs.

Baseline

  

Patients, n (%)

93 (100.0)

93 (100.0)

Lbs., mean (SD)

208.3 (51.3)

199.8 (53.4)

6 Months

  

Patients, N (%)

76 (81.7)

82 (88.2)

Lbs., mean (SD)

203.1 (46.5)

200.6 (56.1)

Proportion with Weight Increase, N (%)

42 (55.3)

44 (53.7)

Proportion with Weight Decrease, N (%)

33 (43.4)

35 (42.7)