Table 1.

Characteristic of propolis group and control group; intergroup differences.

	Propolis group			Control group			Intergroup difference P
	Female	Male	Total	Female	Male	Total
	n = 18	n = 30	n = 48	n = 15	n = 22	n = 37
Age in years
Median	12.6	12.3	12.3	12,43	11,62	11,90
25th–75th percentile (IQR)	11.2–13.6 (2.4)	10.9–14.7 (3.8)	11.14–14.1 (2.9)	10.7–13.8 (3.1)	9.8–12.8 (3.0)	10.3–13.1 (2.8)	0.375 a
UCLP n (%)	9 (18.7%)	15 (31.3%)	24 (50%)	8 (21.6%)	13 (35.1%)	21 (56.7%)	0.536 b
BCLP n (%)	3 (6.2%)	5 (10.4%)	8 (16.6%)	3 (8.1%)	7 (18.9%)	10 (27%)	0.955 b
UCL n (%)	6 (12.5%)	10 (20.9%)	16 (33.4%)	4 (10.8%)	2 (5.4%)	6 (16.2%)	0.246 b
Multibracket appliances n (%)	10 (20.9%)	21 (43.7%)	31 (64.6%)	8 (21,6%)	12 (32.4%)	20 (54.0%)	0.074 b
Removable appliances n (%)	8 (16.7%)	9 (18.7%)	17 (35.4%)	7 (19.0%)	10 (27.0%)	17 (46.0%)	0.325 b
DMFT
Mean (SD)			4.45 (3.55)			4.51 (4.48)
Median (IQR)			5.0 (6.0)			5.0 (5.0)	0.22 a
GI
Mean (SD)			1.58 (0.85)			1.52 (0.87)
Median (IQR)			1.5 (1.2)			1.3 (1.3)	0.67 a
PLI
Mean (SD)			1.47 (0.62)			1.22 (0.83)
Median (IQR)			1.5 (1.0)			0.96 (1.0)	0.06 a

IQR, interquartile range; ^a U Mann-Whitney test; ^bchi-square test, ^∗significance if P < 0.05.