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

Table 3 Comparison of positive respiratory symptoms between treatment group and control group within a 3-month intervention

Items	Treatment group (n = 50)	Control group (n = 49)	Pvalue^#
Chronic cough (positive %)
Baseline	46/50 (92.0)	47/49 (95.9)	0.692
3 month after	38/50 (76.0)*	45/49 (91.8)	0.032^#
Chronic expectoration (positive %)
Baseline	43/50 (86.0)	43/49 (87.8)	0.796
3 month after	35/50 (70.0)*	37/50 (75.5)*	0.538
Asthma/Dyspnea (positive %)
Baseline	14/50 (28.0)	18/49 (36.7)	0.353
3 month after	12/50 (24.0)	15/49 (30.6)	0.460
Chronic angina (positive %)
Baseline	20/50 (40.0)	19/49 (38.8)	0.901
3 month after	21/50 (42.0)	16/49 (32.7)	0.336
Chronic bronchitis (positive %)
Baseline	31/50 (62.0)	27/49 (55.1)	0.486
3 month after	25/50 (50.0)*	26/49 (53.1)	0.761

* P < 0.05 when comparing these variables before versus after intervention in the treatment group or control group by using paired sample chi-square.
^# P < 0.05 when comparing these variables between treatment group and control group by using chi-square.

ISSN: 1475-2891