Table 1 Characteristics of included observational studies in the meta-analysis
Author | Year | Country | Cohort | No. of participant | Follow-up time (year) | Professions | The type of work shift | Adjust parameters | Study design |
|---|---|---|---|---|---|---|---|---|---|
Osaki, Y. | 2021 | Japan | J-ECOH | 17,628 | 13 | Workers | Shift work | age, gender, marital status, hypertension, dyslipidemia, family history of diabetes, sedentary work, over time working, job position, alcohol, smoking, sleep duration, physical activity, BMI | Prospective |
Silva-Costa, A. | 2020 | Brazill | ELSA-Brasil | 8656 | 12 | Civil servants | Night shifts (≥ 5 consecutive hours of night work [22:00–05:00 h] at least four times per month) | age, education, hours of work, BMI, physical activity | Prospective |
Hanprathet, N. | 2019 | Thailand | NA | 5947 | 7 | Workers | Current shift workers (did permanent night shifts only for at least three night shifts per month or; who rotated between two or three shifts with at least three night shifts per month until the baseline year) | age, marital status, family history of diabetes, BMI, hypertension, DBP, FPG, WBC, TG, HDL-C, WC, education | Retrospective |
Shan, Z. | 2018 | United States | Nurses’ Health Study | 55,324 | 24 | Nurses | Rotating night shift work | age, calendar year, ethnicity, BMI, marital status, living status, family history of diabetes, menopausal status, oral contraceptive, alcohol, energy intake, smoking, physical activity, AHEI | Prospective |
Shan, Z. | 2018 | United States | Nurses’ Health Study II | 88,086 | 22 | Nurses | Rotating night shift work | age, marital status, calendar year, BMI, ethnicity, living status, family history of diabetes, menopausal status, oral contraceptive, alcohol, energy intake, smoking, physical activity, AHEI | Prospective |
Bannai, A. | 2016 | Japan | NA | 3195 | 6 | Civil servants | Shift work | age, marital status, FPG, family history of diabetes, education, job position | Prospective |
Hansen, Anne B. | 2016 | Denmark | The Danish Nurse Cohort | 19,492 | 19 | Nurses | Night shifts | age, smoking, physical activity, alcohol, fatty meat intake, marital status, job position, acute myocardial infarction, hypertension, fruit and vegetables intake, BMI | Prospective |
Vimalananda, V. G. | 2015 | USA | BWHS | 28,041 | 8 | NA | Night shift work | age, questionnaire cycle, BMI, family history of diabetes, education, neighborhood socioeconomic status, vigorous activity levels, smoking, alcohol, energy intake, diet, coffee, decaffeinated coffee, soda, diet soda | Prospective |
Poulsen, K. | 2014 | Denmark | NA | 7305 | 7 | Health care workers | Evening/night shift work | health, work, lifestyle | Prospective |
Kawakami, N. | 1999 | Japan | NA | 2194 | 8 | Industrial workers | Rotating shift workers engaged in two or three shift work schedules including night shift, with a weekly clockwise rotation | age, BMI, education, alcohol, smoking, physical activity, family history of diabetes | Prospective |