95% Confidence Interval for
Follow-Up Period NB NB* GEE GEE* Ratio Ratio*
Year 1 (0.8076, 1.3920) (0.8432, 1.4345) (0.7871, 1.4126) (0.8276, 1.4616) (0.7869,1.4127) (0.8275, 1.4618)
Year 2 (0.8032, 1.3702) (0.8372, 1.4106) (0.7981, 1.3753) (0.8332, 1.4173) (0.7979,1.3755) (0.8331, 1.4175)
Year 3 (0.8098, 1.5011) (0.8567, 1.5584) (0.7635, 1.5475) (0.8231, 1.6222) (0.7632,1.5477) (0.8229, 1.6225)
Year 4 (0.9258, 1.7793) (0.9866, 1.8543) (0.8601, 1.8451) (0.9398, 1.9467) (0.8597,1.8454) (0.9395, 1.9472)
Year 5 (0.6859, 1.5081) (0.7542, 1.5957) (0.6361, 1.5579) (0.7207, 1.6698) (0.6355,1.5585) (0.7203, 1.6707)
  Follow-Up Period NB NB* GEE GEE* Ratio Ratio*
Year 1 0.5444 0.5314 0.5848 0.5687 0.5852 0.5690
Year 2 0.5340 0.5217 0.5443 0.5312 0.5446 0.5315
Year 3 0.6171 0.5983 0.7065 0.6785 0.7070 0.6789
Year 4 0.6533 0.6310 0.7633 0.7283 0.7639 0.7288
Year 5 0.7879 0.7495 0.8957 0.8403 0.8970 0.8413
Table 5: 95% confidence intervals of the with the confidence widths by the all six methods for the skin cancer data of example 2.