Detailed Instructions: Given a passage classify if the passage has a definite objective/aim/goal or not. Output '1' if the passage has a defininte objective/aim/goal and output '0' if the passage does not have a definite objective/aim/goal.
Q: The aim of this study is to investigate the relationship between sleep duration and hypertension in a middle-aged Chinese population.', 'Cross-sectional data of 20,505 individuals aged 35-64years from Taizhou longitudinal study was used. Logistic regression models were used to calculate odds ratios (ORs) for the risk of pre-hypertension and hypertension in association with sleep duration.', 'Short sleep duration was associated with high systolic and diastolic blood pressure in comparison with sleep duration of 7-8h in females. Short sleep duration was also associated with an increased risk of hypertension in females. Age-stratified analysis showed that as compared with sleep duration of 7-8h, sleep duration <6h increased risk of hypertension after controlling for multiple covariates with an OR of 1.766 (1.024-2.775) in early middle-aged females of 35-44years. More importantly, sleeping less than 6h is associated with increased risk of pre-hypertension in females of this age category, after controlling for multiple covariates with an OR of 1.769 (1.058-2.958).
A:
1