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Table 9 Convenience Satisfaction Ratings Correlated with Frequency of Specific Difficulties with Administration (Spearman Rho Correlations)

From: A new measure of patient satisfaction with ocular hypotensive medications: The Treatment Satisfaction Survey for Intraocular Pressure (TSS-IOP)

  TSS-IOP Ease of Use (Level 3) TSS-IOP Convenience of Use (Level 3) TSQM Convenience (Level 2) TSQM GLOBAL (Level 1)
Problems self-administering -.52*** -.30*** -.42*** -.28***
Requiring assistance -.23*** -.02 -.17** -.06
Frequency missing eye -.44*** -.29*** -.33*** -.09
Anticipatory blink and spillage -.30*** -.23*** -.30*** -.15*
Trouble positioning head -.43*** -.34*** -.34*** -.19**
Delivering too much medication -.45*** -.29*** -.27*** -.16**
Forgetting to use medication -.17** -.38*** -.26*** -.11
  1. * p < .05 level (2-tailed) ** p < .01 level (2-tailed). *** p < .001 (2-tailed)