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The aim of this study is to test the reliability and validity of the Chinese version of CP-Q among college students.
The English version of the CP-Q was translated, back-translated following the Brislin model, and cultural adaptation was performed to develop the Chinese-version CP-Q.The reliability, validity and feasibility of the questionnaire were evaluated by investigation of questionnaires offline and electronic questionnaires online.
A total of 658 participants were investigated with 593 valid questionnaires obtained, the total effective rate was 90.1%.Subjects finished the Chinese-version CP-Q and Pittsburgh Sleep Quality Index (PSQI); Munich Chronotype Questionnaire (MCTQ) and 24h dietary recalls. Moderate to strong correlations were observed in the sleep/wake schedules between the Chinese-version CP-Q, PSQI and MCTQ, both for work/study days and free days, the highest was the free day sleep time r=0.922(P<0.001).The correlations between sleep, wake, first eating event, lunch time and last eating event in work/study days and free days with the same variables in the 24h recall showed r=0.441-0.659 (P<0.05), in addition to the lunchtime in free days (r=287, P=0.076). A total of 7 items among the 17 variables in the Chinese-version CP-Q evaluated in the test and retest phases presented intraclass correlation coefficients ≥0.75.
The Chinese-version CP-Q has good reliability and validity and could reflect the real situation of eating time and sleeping time. The questionnaire can be used to assess the status of one’s chrononutrition.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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