Table 2.

Clinical findings in 20 non-small cell lung cancer patients undergoing hydrogen therapy

	Before treatment	2 wk after treatment	P-value
Forced expiratory volume in one second (L)	1.56±0.59	2.13±0.48	< 0.05
Forced vital capacity (L)	1.93±0.57	2.38±0.53	< 0.05
Karnofsky performance status score	75±6	88±7	< 0.05
Lung symptoms
Moderate cough	13	5	0.0248
Mild dyspnea	11	4	0.0484
Mild haemoptysis	9	5	0.3203
Chest pain	8	4	0.3008
Mild pleural effusion	6	4	0.7164
Lung bubble	4	2	0.6614

Note: Data in the forced expiratory volume in one second, forced vital capacity and Karnofsky performance status score are expressed as the mean ± SD, and were analyzed by repeated measures analysis of variance followed by Bonferroni’s multiple comparison test. Data in the lung symptoms are expressed as number and analyzed by paired t-test.