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Patterns of missing data in the use of the endometriosis symptom diary.


ABSTRACT: BACKGROUND:Endometriosis is a common, chronic condition in women of reproductive age that is characterized by the presence of functional endometriotic lesions outside the uterus. The Endometriosis Symptom Diary (ESD) is an electronic patient-reported outcome (ePRO) instrument that assesses women's experience of endometriosis symptoms, with pain scored using a 0-10 numeric rating scale. This study investigated patterns of data missing from the ESD in the VALEPRO study. METHODS:Post hoc analyses of missing data were conducted. RESULTS:Of 272 participants using the ESD, 26.5% had no missing diary entries, 46.7% had >?0-5% of entries missing, 13.2% had >?5-10% of entries missing and 13.6% had >?10% of entries missing over the entire study period. The duration of missing episodes (defined as ?1 consecutive days with missing diary entries) was generally short; most (81.4%) were 1 day. The difference in mean worst pain scores between missing and complete episodes per participant was -?0.1, suggesting that missing episodes were not related to severity of pain. Entries were significantly more likely to be missing on Fridays (18.5%) and Saturdays (22.9%) compared with other days of the week (p?

SUBMITTER: Seitz C 

PROVIDER: S-EPMC5994094 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature

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Patterns of missing data in the use of the endometriosis symptom diary.

Seitz Christian C   Lanius Vivian V   Lippert Susanne S   Gerlinger Christoph C   Haberland Claudia C   Oehmke Frank F   Tinneberg Hans-Rudolf HR  

BMC women's health 20180608 1


<h4>Background</h4>Endometriosis is a common, chronic condition in women of reproductive age that is characterized by the presence of functional endometriotic lesions outside the uterus. The Endometriosis Symptom Diary (ESD) is an electronic patient-reported outcome (ePRO) instrument that assesses women's experience of endometriosis symptoms, with pain scored using a 0-10 numeric rating scale. This study investigated patterns of data missing from the ESD in the VALEPRO study.<h4>Methods</h4>Post  ...[more]

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