{'fraction_non_alphanumeric': 0.03685196752029981, 'fraction_numerical': 0.018738288569643973, 'mean_word_length': 5.0, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Randomized comparison of the clinical Outcome of single versus Multiple Arterial grafts: Quality of Life (ROMA:QOL) - Rationale and Study Protocol.

The objective of the Randomized comparison of the Outcome of single vs Multiple Arterial grafts: Quality of Life (ROMA:QOL) trial is to evaluate the impact of coronary artery bypass graft surgery (CABG) on quality of life (QOL). The primary hypothesis of ROMA:QOL is that participants in the multiple arterial group (MAG) will report time-varying changes in QOL that will be lower in the post-operative recovery period and higher after 12 months compared to patients in the single arterial group (SAG). The secondary hypotheses are that both groups will have improvements in symptoms at 12 months, and that compared to the SAG group, participants in the MAG group will experience better physical functioning and physical and mental health symptoms. An estimated 2,111 participants will be enrolled from the parent ROMA trial from 13 countries. Outcome assessments include the Seattle Angina Questionnaire (SAQ) (primary outcome), Short Form-12v2, EQ-5D-5L, PROMIS-29 and PROMIS Neuropathic Pain measured at baseline, first post-operative visit, 6, 12, 24, 36, 48 and 60- months. The analysis for the primary outcome, the change in the SAQ from baseline to 12- months, will be compared across all time-points between the two treatment arms. The ROMA:QOL trial will answer whether there are differences in QOL, physical and mental health symptoms overall for CABG, by MAG and SAG intervention arms, by sex, and between patients with and without diabetes.