Table 3.
Overview of N status in different age categories
| N status | Op-SC |
Or-SC |
Diff |
Chi-square |
|||
|---|---|---|---|---|---|---|---|
| n | % | n | % | % | 95% CI | P value | |
| <50 years | 439/445 | 3549/3654 | 0.191 | ||||
| N0 | 240 | 54.7 | 1956 | 55.1 | −0.4 | [−5.5, 4.6] | 0.9 |
| N1 | 132 | 30.1 | 1172 | 33.0 | −3 | [−7.6, 1.7] | 0.234 |
| N2 | 37 | 8.4 | 233 | 6.6 | 1.9 | [−1.0, 4.7] | 0.172 |
| N3 | 30 | 6.8 | 188 | 5.3 | 1.5 | [−1.1, 4.1] | 0.221 |
| 50-69 years | 995/1026 | 8253/8598 | <0.001 | ||||
| N0 | 597 | 60.0 | 5426 | 65.7 | −5.7 | [−9.0, −2.5] | <0.001 |
| N1 | 299 | 30.1 | 2121 | 25.7 | 4.4 | [1.3, 7.4] | <0.001 |
| N2 | 44 | 4.4 | 393 | 4.8 | −0.3 | [−1.8, 1.1] | 0.691 |
| N3 | 55 | 5.5 | 313 | 3.8 | 1.7 | [0.2, 3.3] | 0.01 |
| 70+ years | 710/811 | 5983/6984 | <0.001 | ||||
| N0 | 371 | 52.3 | 3719 | 62.2 | −9.9 | [−13.9, −6.0] | <0.001 |
| N1 | 228 | 32.1 | 1659 | 27.7 | 4.4 | [0.7, 8.1] | 0.016 |
| N2 | 60 | 8.5 | 353 | 5.9 | 2.6 | [0.3, 4.8] | 0.01 |
| N3 | 51 | 7.2 | 252 | 4.2 | 3 | [0.9, 5] | <0.001 |
Diff, difference; Op-SC, opportunistic-screening cantons; Or-SC, organized-screening cantons.
The bold numbers represent the number of actually analyzed cases in relation to the total number of breast cancers diagnosed as summarized in Table 1. The bold P values refer to the comparison of the two groups over all cancer status simultaneously of the respective age group.