Variables Nicotine dependence level (n)
Mild(22) Moderate(30) Severe(21)
Dyspnea 13.7 13.3 38
Fatigue 27.3 30 52.4
Coughing/Sputum 22.7 26.7 52.4
Pain 13.6 23.3 47.6
Table 2: Values % of subjects who indicates presence of symptoms.
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