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Table 3 Differences in negative perceptions between short-term and long-term users

From: Use of phytoestrogens and effects perceived by postmenopausal women: result of a questionnaire-based survey

Negative Perceptions All users N (%) Short-term users N (%) Long-term users N (%) Chi square p value
  163 a (100) 67 b (100) 82 b (100)   
Swelling sensation 24 (15) 7 (10) 17 (21) 2.89 0.09
Edema 18 (11) 4 (6) 14 (17) 4.38 0.04
Somnolence 13 (8) 5 (7) 8 (10) 0.24 0.62
Fatigue 12 (7) 3 (4) 9 (11) 2.10 0.15
  1. aExcluding new users; bMissing data on duration of therapy or negative perceptions in 12 questionnaires.