Table 2.

Symptom score comparisons between two groups after treatment (x̄ ± s)

Group		Cough	Difficult expectoration	Throat itching
Control group	before	2.59±0.20	2.37±0.28	2.48±0.25
(n=42)	after	1.68±0.18*	1.57±0.15*	1.62±0.16*
Treatment group	before	2.65±0.23	2.42±0.30	2.54±0.27
(n=42)	after	1.06±0.14*Δ	1.08±0.13*Δ	1.11±0.15*Δ

Note: Fcomparisons between groups

^*P<0.05 compared with control group,

^ΔpΔP<0.05.