Table 2.

Mean (SD) of yearly average HbA1c levels by year prior to index large bowel endoscopy

Case–control study 1Case–control study 2
Any adenomaAdvanced adenomaNo adenomaAny adenomaAdvanced adenomaNo adenoma
Prior year 1 n Mean (SD), %1,155 7.64 (1.51)434 7.60 (1.51)2,669 7.55 (1.39)853 7.89 (1.49)257 7.84 (1.55)7,984 7.91 (1.59)
Prior year 2 n Mean (SD), %1,079 7.75 (1.60)394 7.78 (1.67)2,496 7.83 (1.60)736 8.09 (1.68)222 8.11 (1.79)7,098 8.03 (1.69)
Prior year 3 n Mean (SD), %1,015 7.94 (1.68)388 7.96 (1.79)2,363 7.98 (1.65)706 8.08 (1.76)213 8.06 (1.78)6,846 8.13 (1.72)
Prior year 4 n Mean (SD), %975 8.18 (1.78)365 8.09 (1.74)2,269 8.09 (1.70)680 8.24 (1.79)208 8.13 (1.81)6,531 8.22 (1.75)
Prior year 5 n Mean (SD), %872 8.19 (1.73)314 8.11 (1.71)2,059 8.21 (1.70)593 8.29 (1.76)185 8.28 (1.86)5,777 8.27 (1.75)
Prior year 6 n Mean (SD), %667 8.12 (1.73)253 8.09 (1.85)1,602 8.24 (1.83)407 8.32 (1.71)118 8.17 (1.59)4,256 8.24 (1.73)
Prior year 7 n Mean (SD), %518 8.27 (1.82)199 8.30 (1.98)1,184 8.27 (1.85)315 8.44 (1.88)97 8.37 (1.75)3,007 8.34 (1.81)
Prior year 8 n Mean (SD), %366 8.32 (1.97)150 8.37 (1.84)851 8.41 (1.83)206 8.34 (1.95)62 8.35 (1.92)2,086 8.28 (1.78)
Prior year 9 n Mean (SD), %271 8.46 (1.78)105 8.60 (1.80)560 8.43 (1.83)115 8.32 (1.91)40 8.63 (1.93)1,391 8.34 (1.74)
Prior year 10 n Mean (SD), %150 8.55 (1.82)61 8.28 (1.68)302 8.54 (1.75)67 8.33 (1.83)18 8.29 (2.03)840 8.29 (1.67)