Table 2.

Changes in glycated hemoglobin levels

	Control group HbA1c (%)		Treatment group HbA1c (%)
	Baseline	Follow-up*	Baseline	Follow up*
Moeintaghavi A et al., 2012	8.72 (2.22)	8.97 (1.82)	8.15 (1.18)	7.41 (1.18)
Gay I et al., 2014	8.40 (2.00)	8.10 (1.80)	9.00 (2.30)	8.40 (1.90)
Engebretson S et al., 2013	7.78 (0.60)	7.88 (0.60)	7.84 (0.65)	7.99 (0.60)
Raman RPC et al., 2014	7.60 (1.50)	7.10 (1.20)	7.80 (1.50)	7.10 (1.20)
Telgi RL et al., 2013	7.74 (0.59)	7.75 (0.58)	7.68 (0.63)	7.10 (0.64)
Koromantzos PA et al., 2011	7.59 (0.66)	7.41 (0.48)	7.87 (0.74)	7.14 (0.54)

*Follow-up - 3-4 months. Data were expressed as mean (SD). SD – Standard deviation; HbA1c – Glycated hemoglobin