Table 5.

Potential Prognostic Factors Investigated

	Factors
Pretreatment	Age, sex, race, performance status, weight, height, body mass index, previous treatments, sites of disease (lung, liver, bone, lymph nodes, lung + nodal, local recurrence), time from diagnosis to randomization, baseline laboratory values
Treatment	Doses of IL-2, peak and nadir blood and differential counts, new hypothyroidism, laboratory values, grade 3 to 4 toxicities, response to treatment

Abbreviation: IL-2, interleukin-2.