Table 1

Demographic characteristics: full cohort and propensity score–matched cohort

TESTNONTEST
Full SMBG (n = 14,179)Partial/no SMBG (n = 17,411)Full SMBG (n = 130,298)Partial/no SMBG (n = 200,511)
Full cohort (2009)
 Age, years75.0 ± 7.076.5 ± 7.774.3 ± 6.676.3 ± 7.7
 Sex, n (%)
  Male4,969 (35.0)6,278 (36.1)47,173 (36.2)72,640 (36.2)
  Female9,210 (65.0)11,133 (63.9)83,125 (63.8)127,871 (63.8)
 Race or ethnicity, n (%)
  White9,077 (64.0)11,462 (65.8)106,089 (81.4)153,914 (76.8)
  Black1,685 (11.9)2,879 (16.5)15,471 (11.9)28,229 (14.1)
  Hispanic2,997 (21.1)2,485 (14.3)4,108 (3.2)7,303 (3.6)
  Other401 (2.8)562 (3.2)4,491 (3.4)10,807 (5.4)
  Unknown19 (0.1)23 (0.1)139 (0.1)258 (0.1)
 Medical conditions, n (%)
  Acute myocardial infarction398 (2.8)463 (2.7)3,801 (2.9)5,199 (2.6)
  Atrial fibrillation1,661 (11.7)2,149 (12.3)17,499 (13.4)25,730 (12.8)
  Chronic kidney disease6,032 (42.5)7,405 (42.5)58,407 (44.8)83,911 (41.9)
  Chronic obstructive pulmonary disease4,717 (33.3)4,802 (27.6)27,248 (20.9)37,152 (18.5)
  Heart failure6,823 (48.1)8,648 (49.7)59,623 (45.8)94,659 (47.2)
  Ischemic heart disease10,186 (71.8)11,347 (65.2)83,378 (64.0)118,554 (59.1)
  Stroke or transient ischemic attack1,292 (9.1)2,322 (13.3)9,776 (7.5)21,815 (10.9)
  Any cancer1,022 (7.2)1,139 (6.5)9,455 (7.3)12,327 (6.2)
Full SMBG (n = 7,769)Partial/no SMBG (n = 7,769)Full SMBG (n = 7,769)Partial/no SMBG (n = 7,769)
Propensity score–matched cohort (2009)
 Age, years74.9 ± 6.774.9 ± 6.774.9 ± 6.774.9 ± 6.7
 Sex, n (%)
  Male2,650 (34.1)2,639 (34.0)2,650 (34.1)2,650 (34.1)
  Female5,119 (65.9)5,130 (66.0)5,119 (65.9)5,119 (65.9)
 Race or ethnicity, n (%)
  White6,098 (78.5)6,094 (78.4)6,098 (78.5)6,098 (78.5)
  Black855 (11.0)859 (11.1)855 (11.0)855 (11.0)
  Hispanic691 (8.9)694 (8.9)691 (8.9)691 (8.9)
  Other125 (1.6)121 (1.6)125 (1.6)125 (1.6)
  Unknown0 (0.0)1 (0.0)0 (0.0)0 (0.0)
 Medical conditions, n (%)
  Acute myocardial infarction69 (0.9)70 (0.9)69 (0.9)69 (0.9)
  Atrial fibrillation696 (9.0)697 (9.0)696 (9.0)696 (9.0)
  Chronic kidney disease3,307 (42.6)3,302 (42.5)3,307 (42.6)3,307 (42.6)
  Chronic obstructive pulmonary disease1,750 (22.5)1,748 (22.5)1,750 (22.5)1,750 (22.5)
  Heart failure3,625 (46.7)3,622 (46.6)3,625 (46.7)3,625 (46.7)
  Ischemic heart disease5,331 (68.6)5,342 (68.7)5,331 (68.6)5,331 (68.6)
  Stroke or transient ischemic attack406 (5.2)416 (5.3)406 (5.2)406 (5.2)
  Any cancer234 (3.0)234 (3.0)234 (3.0)234 (3.0)