Table 1.
Characteristics of included women depending on the availability of data on IDI
| respondents (IDI available (n = 1218)) | non-respondents (missing data on IDI (n = 426)) | |||||
|---|---|---|---|---|---|---|
| N | % | N | % | p-value* | ||
| age | less than 50 | 278 | 22.8 | 88 | 20.7 | <0.001 |
| 50 to 74 | 798 | 65.5 | 231 | 54.2 | ||
| 75 or more | 142 | 11.7 | 107 | 25.1 | ||
| stage at diagnosis | Early | 708 | 58.1 | 205 | 48.1 | <0.001 |
| advanced | 510 | 41.9 | 221 | 51.9 | ||
| EDI | q1 (least deprived) | 307 | 25.2 | 97 | 22.8 | 0.361 |
| q2 | 300 | 24.6 | 99 | 23.2 | ||
| q3 | 265 | 21.8 | 89 | 20.9 | ||
| q4 | 202 | 16.6 | 76 | 17.8 | ||
| q5 (most deprived) | 144 | 11.8 | 65 | 15.3 | ||
*Chi-square test