Table 1

Number and proportion of women responding to annual questionnaires by trial arm in the EPHT Trial, 1999–2004

Trial arm
Recruitment N (%)
1st year N (%)
2nd year N (%)
Final N (%)

Blind HT
415 (100)
315 (75.9)
295 (71.1)
329 (79.3)
Blind placebo
381 (100)
278 (73.0)
254 (66.7)
308 (80.8)
Non-blind HT
503 (100)
371 (73.8)
340 (67.6)
405 (80.5)
Non-treatment
524 (100)
395 (75.4)
374 (71.4)
445 (84.9)
Total
1823 (100)
1359 (74.6)
1263 (69.3)
1487 (81.4)

Veerus et al. BMC Women's Health 2008 8:5   doi:10.1186/1472-6874-8-5