Effects of Lung Support Formula on respiratory symptoms among older adults: results of a three-month follow-up study in Shanghai, China

Table 4 The comparison of respiratory symptoms scores between treatment and control group by repeated measure of analysis of variance ( $\bar{x} \pm s$ )

Group	Baseline	One month follow-up	Two month follow-up	End of follow-up	F	P*
Treatment	8.86 ± 2.15	8.24^# ± 2.33	7.82^# ±1.88	7.92^# ±1.99	6.582	0.002*
Control	8.92 ± 2.33	8.36 ± 2.00	8.45 ± 2.41	8.39 ± 2.33	2.279	0.082
F P	0.689 0.409	—	—	—		—

* P < 0.01 when assessing the effect of change with the lapse of time by using repeated measure of analysis of variance.
# P < 0.05 when comparing the scores of follow-up versus of baseline by using paired sample t-test.

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