Fig. 2

Trajectories of self-efficacy for managing illness (mean item response, Y axis) across three measurement points (1: 3–4 days after surgery, 2: 1-month follow-up, and 3: 4-month follow-up): Effects of gender and family cancer history among patients with non-small cell lung cancer. Self-efficacy mean item responses could range from 1 to 5. As the actual mean item responses were above 4, only values above 4 are displayed in Y axis