Establishment and preliminary study of gastrointestinal cognition and behavior index scale
10.3760/cma.j.cn311367-20240204-00055
- VernacularTitle:胃肠认知与行为指数量表的建立及初测研究
- Author:
Qiaoli ZHANG
1
;
Lixin DING
;
Jianxin CAO
Author Information
1. 常州市第一人民医院心身胃肠病学科 苏州大学心身胃肠病学研究所，常州 213000
- Keywords:
Functional gastrointestinal disorders;
Gastrointestinal cognition;
Gastrointestinal behavior;
Dietary avoidance;
Reliability;
Validity
- From:
Chinese Journal of Digestion
2024;44(7):461-466
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish the gastrointestinal cognition behavior index(GCBI) scale and conduct a preliminary clinical study, to provide a scientific tool for assessing gastrointestinal related cognition and behavior among Chinese residents.Methods:The initial GCBI scale was formed through literature review and experts′ evaluation. From January 1 to December 31, 2022, 323 healthy participants who received medical treatment or check-ups at the First People′s Hospital of Changzhou were selected by convenient sampling method for the initial GCBI scale. A total of 307 valid scales of GCBI were collected, and 98 of them were selected by convenient sampling method for the gastrointestinal quality of life index (GIQLI) scale test. A total of 50 participants of 307 were selected by random number table method for retesting the initial GCBI scale after 2 weeks. The principal component analysis was used for factor extraction to established the formal GCBI scale. From March 1 to May 31, 2023, at the First People′s Hospital of Changzhou, 40 patients with functional gastrointestinal disorder(FGID, FGID group) and 40 healthy individuals (healthy control group) were selected by convenient sampling method for formal GCBI scale test. Pearson correlation analysis and Cronbach′s α coefficient were used to evaluate the criterion validity and reliability of the scale. Rank-sum test was used to compare the total GCBI scale scores and factor scores between the FGID group and the healthy control group. Results:The results of principal component analysis showed that 2 factors and 7 items were finally extracted to establish the formal GCBI scale. The cumulative contribution rate of factor 1 and factor 2 was 84.30%, and the factor load values ranged from 0.721 to 0.913. Pearson correlation analysis showed that the total score of GCBI scale and each factor were negatively correlated with the total score and each factor of GIQLI scale (all P<0.001).The Cronbach′s α coefficient of the total GCBI scale, factor 1, and factor 2 were 0.90, 0.87, and 0.91, respectively. The test-retest reliability correlation coefficient r were 0.98, 0.97, and 0.99 (all P<0.001). The total score of GCBI scale, factor 1 and factor 2 scores of FGID group were all higher than those of the healthy control group(10.00(7.25, 13.25) vs. 2.00(0.25, 3.00), 5.00(3.25, 8.00) vs. 0.50(0, 2.00), 5.00(3.00, 6.00) vs. 0.50(0, 2.00)), and the differences were statistically significant( Z=7.42, 6.82 and 7.04, all P<0.001). Conclusion:The GCBI scale established in this study has good reliability and validity, and is suitable for evaluating the gastrointestinal-related cognition and behavior, and it is helpful for the diagnosis of FGID.
