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Table 1 Characteristics of study population by HbA1c level and self reported diabetes. Values are number (%) in the category unless stated otherwise

From: An investigation of the population impact of variation in HbA1clevels in older people in England and Wales: From a population based multi-centre longitudinal study

Characteristic   HbA1c (%)     Self reported diabetes  
   3.7–5.2 5.3–5.7 5.8–6.9 ≥7   Total
  Number (%) 372 (33) 345 (30) 287 (25) 36 (3) 99 (9) 1139
Age Median (IQR)   78 (73–84) 78 (74–85) 80 (75–86) 83 (77–89) 80 (75–86)  
MMSE Median (IQR)   26 (22–28) 25 (23–28) 25 (21–28) 23 (20–25) 25 (22–28)  
Sex Male 154 (41) 139 (40) 125 (43) 20 (56) 49 (49) 487
Social Class I/II 106 (28) 103 (30) 60 (21) 12 (33) 27 (27) 308
  III 182 (49) 155 (45) 154 (54) 14 (39) 45 (46) 550
  IV/V 73 (20) 77 (22) 64 (22) 10 (28) 23 (23) 247
  Missing 11 (3) 10 (3) 9 (3) 0 (0) 4 (4) 34
Education <10 years 243 (65) 249 (72) 208 (72) 24 (67) 68 (69) 792
Smoking status Current smoker 46 (13) 49 (14) 68 (24) 6 (17) 20 (20) 189
  Ex-smoker 197 (53) 154 (44) 128 (44) 18 (50) 44 (45) 541
  Non smoker 124 (33) 140 (41) 90 (31) 12 (33) 28 (28) 336
  Missing 5 (1) 2 (1) 1 (1) 0 (0) 3 (3) 11
ADL No impairment 206 (55) 177 (51) 138 (48) 11 (31) 34 (34) 566
  IADL impairment 61 (17) 62 (18) 55 (19) 9 (25) 19 (19) 206
  IADL and/or ADL impairment 93 (25) 93 (27) 78 (27) 16 (44) 41 (42) 321
  Missing 12 (3) 13 (4) 16 (6) 0 (0) 5 (5) 46
History of Heart Attack 45 (12) 44 (13) 40 (14) 3 (8) 20 (21) 152
History of Stroke 36 (10) 42 (12) 36 (13) 4 (11) 21 (21) 139
History of High Blood Pressure 126 (34) 142 (41) 116 (40) 18 (50) 42 (42) 444