Paul Budhaditya, Srivastava Ankita
Department of Public Health Dentistry, Manipal College of Dental Sciences, Manipal, Karnataka, India.
Department of Prosthodontics and Crown and Bridge, Manipal College of Dental Sciences, Manipal, Karnataka, India.
J Indian Soc Periodontol. 2024 May-Jun;28(3):319-324. doi: 10.4103/jisp.jisp_471_23. Epub 2024 Dec 2.
To assess the validity of time trade-off (TTO) and standard gamble (SG) techniques of utility valuation among patients with periodontal problems by assessing their relation to two logical constructs; Gingival Index (GI) and Oral Health Impact Profile (OHIP) Questionnaire.
Two hundred and one patients aged 18 years old and above, who visited a tertiary care hospital for treatment/consultation were included. A questionnaire was administered to record the TTO, SG, and OHIP. GI, measuring the severity of the disease, was recorded. Bivariate and backward multiple regression analyses were done to find an association between the oral health utility values, OHIP, and the variables of interest (demographic and clinical characteristics including GI).
There was a statistically significant decrease in the TTO and SG utilities ( < 0.05) as the severity of the disease progressed from mild to severe. GI, as well as OHIP scores, were significant predictors in the case of both the TTO as well as SG ( < 0.05).
TTO and SG utilities were found to be valid and correlated well with clinical findings. Health utilities serve as useful and reliable markers of health-related quality of life among individuals as well as communities.
通过评估时间权衡法（TTO）和标准博弈法（SG）与两个逻辑结构即牙龈指数（GI）和口腔健康影响程度量表（OHIP）问卷之间的关系，来评估牙周疾病患者效用评估技术的有效性。
纳入201名18岁及以上到三级医院接受治疗/咨询的患者。采用问卷记录TTO、SG和OHIP。记录测量疾病严重程度的GI。进行双变量和向后多元回归分析，以找出口腔健康效用值、OHIP与感兴趣的变量（人口统计学和临床特征，包括GI）之间的关联。
随着疾病严重程度从轻度发展到重度，TTO和SG效用值有统计学意义的下降（<0.05）。在TTO和SG两种情况下，GI以及OHIP评分都是显著的预测因素（<0.05）。
发现TTO和SG效用是有效的，且与临床结果相关性良好。健康效用是个体以及社区中与健康相关生活质量的有用且可靠的指标。
