Table 3. Comparison of age-adjusted mean differences in the scores before and after the intervention in the three groups.

	Treatment group				Mean Difference
Item	Honey 1 (G1) (n = 42)	Honey 2 (G2) (n = 25)	Diphenhydramine (G3) (n = 20)	P a	G1 vs. G2 b	G1 vs. G3	G2 vs. G3
Cough frequency	1.4±1.3	1.9±1.9	0.9±1.0	0.071	-0.5	0.5	1.0c
Cough severity	1.7±1.2	2.2±1.7	0.7±0.9	0.002	-0.5	1.0c	1.5d
Bothersome nature of cough	1.7±1.2	2.0±1.9	0.6±0.9	0.006	-0.4	1.0c	1.4c
Sleep quality in child	2.2±1.6	1.8±2.3	0.9±1.0	0.057	0.3	1.2c	0.8
Sleep quality in parents	2.1±1.3	2.2±1.4	1.0±1.0	0.003	-0.1	1.1c	1.2c
Combined	9.1±6.1	10.2±9.2	4.2±4.5	0.011	-1.2	4.8c	6.0c

Data are presented as mean±SD.

^a Analysis of variance;

^b Post hoc multiple comparisons by LSD.

^c P< 0.050;

^d P< 0.001.