. 2011 Nov 1;5(6):1529–1548. doi: 10.1177/193229681100500630

Table 1.

Results of Meta-Analyses Since 2008

Poolsup (2008)¹⁴ SMBG versus no SMBG SMBG versus no SMBG—SMBG results used to modify therapy SMBG versus no SMBG—SMBG results not used to modify therapy	A1C (95% confidence interval) -0.24% (-0.37 to -0.12; p = .0002; seven trials) -0.27% (-0.41 to -0.14; p = .0001; six trials) -0.12% (-0.32 to 0.08; p = not significant; six trials)
Towfigh (2008)¹⁵ SMBG versus no SMBG ≥ 1 year SMBG versus no SMBG 6 months	A1C (95% confidence interval) -0.16% (-0.38 to 0.05; p = not significant; five trials) -0.21% (-0.38 to -0.04; p < .05; six trials)
St. John (2010)¹⁶ SMBG versus no SMBG SMBG versus no SMBG < 1 year SMBG versus no SMBG ≥ 1 year	A1C (95% confidence interval) -0.22% (-0.34 to -0.11; p < .05; seven trials) -0.26% (-0.40 to -0.11; p = .001; five trials) -0.17% (-0.36 to 0.02; p = .072; two trials)
Clar (2010)¹⁷ SMBG versus no SMBG Enhanced SMBG versus no SMBG	A1C (95% confidence interval) -0.21% (-0.31 to -0.10; p < .0001; ten trials) -0.52% (-0.98 to -0.06; p = .03; four trials)