Table 4.
Calculations of P values from confidence interval (CI)
| Risk group | LN(OR) | SELN(OR) = (LN[CLU] − LN[CLL])/(2 × 1.96) | z = Abs(LN[OR]/SELN[OR]) | P = e(−0.717×z−0.416×z×z) |
|---|---|---|---|---|
| Men ≥ 56 | 2.4 | 0.25 | 9.2 | < 0.0001 |
| Women 19–34 | 1.0 | 0.30 | 3.5 | 0.0006 |
| Autoimmune disease | 1.9 | 0.33 | 5.7 | < 0.0001 |
| Thymectomy for thymoma | 12 | 0.72 | 16 | < 0.0001 |
| SLE | 3.7 | 0.59 | 6.3 | < 0.0001 |
| Pernicious anemia | −0.01 | 1.0 | 0.01 | 0.99 |
CLU upper CI, CLL lower CI; Abs = absolute value; LN = natural logarithm; OR = odds ratio; SLE = systemic lupus erythematosus.