Notes

Man-made intelligence-based systems for COVID-19 affected person supervision.
The design of a multidimensional monitoring system for health access allows us to complement measures usually focused on a specific concept of access (such as utilization, coverage, etc.) with other dimensions. It includes those barriers that are relevant for the Chilean population. It also allows comparisons with other health systems and the generation of evidence to improve public policies.
The design of a multidimensional monitoring system for health access allows us to complement measures usually focused on a specific concept of access (such as utilization, coverage, etc.) with other dimensions. It includes those barriers that are relevant for the Chilean population. It also allows comparisons with other health systems and the generation of evidence to improve public policies.
Water is an essential nutrient for cellular homeostasis and life. Drinking ≥ 6 glasses (1.5 L/day) is the recommendation of daily water intake (RIAD).

To characterize water intake, according to sociodemographic, anthropometric and lifestyles variables, in the Chilean adult population.

Analysis of data from 5,520 participants of the 2016-17 National Health Survey. Compliance with RIAD by population groups according to sociodemographic, anthropometric and lifestyle characteristics was studied through logistic regression analyses.

Only 27.8% of the national population met the RIAD. Women, people over than 56 years of age, housewives, retired people, widowers, and non-smokers were less likely to meet the RIAD. The likelihood of not complying with RIAD in these segments of the population ranged from 28% to 62%. Conversely, participants who presented a higher likelihood of meeting RIAD were those who co-habiting, had a medium and higher educational level, followed a diet plan, and those who reported a good health and well-being. The likelihood of meeting with the RIAD for these population groups ranged from 47% to 116%.

The likelihood of meeting the RIAD varied according to different sociodemographic, anthropometric, and lifestyle variables. Therefore, public policies for promoting water consumption should be focused on all age groups, but especially in those groups with the highest risk of underconsumption.
The likelihood of meeting the RIAD varied according to different sociodemographic, anthropometric, and lifestyle variables. Therefore, public policies for promoting water consumption should be focused on all age groups, but especially in those groups with the highest risk of underconsumption.
The statistical significance α = 0.05 is the cut-off point used to decide whether a hypothesis is statistically significant. When p-value is less than 0.05, we reject the null hypothesis. Although this criterion has been used for almost a century to generate new knowledge, there is currently an international discussion about the need to decrease the significance to α = 0.005.

To determine the effects that changing the p value would have on the sample size of different types of studies.

A series of formulas for calculating the sample size of cross-sectional and comparative studies were used to create case scenarios.

By changing α = 0.05 to α = 0.005, the sample sizes in cross-sectional studies would double and in comparative studies would increase between 60% and 70%, depending on the statistical power chosen.

Considering the sample size implications, the change in the level of significance would have important effects on the Chilean science. The cost of a randomized clinical trial could increase by at least 27% to 32%. This increase could be similar for cross-sectional studies. With an investment of less than 0.4% of gross domestic product in science and technology, national scientific research would become more expensive, distributing the few available resources among fewer projects. This effect should be considered in any discussion about national budget for science and technology.
Considering the sample size implications, the change in the level of significance would have important effects on the Chilean science. The cost of a randomized clinical trial could increase by at least 27% to 32%. This increase could be similar for cross-sectional studies. With an investment of less than 0.4% of gross domestic product in science and technology, national scientific research would become more expensive, distributing the few available resources among fewer projects. This effect should be considered in any discussion about national budget for science and technology.
Among older people, physical exercise improves cognitive function, aerobic fitness, and thus functional independence.

To determine the effects of a walking training program on aerobic fitness and cognitive function in older women with type 2 diabetes mellitus.

An experimental study was carried out in 76 women with type 2 diabetes mellitus aged between 64 and 78 years. Thirty-eight women in the exercise group (EG) participated in a controlled walking program 3 times a week for 48 sessions (60min /day) and 38 women in the control group (CG) were not trained. Weight, height, body mass index (BMI), estimated maximal oxygen uptake (VO2max), and cognitive function using the Minimental test were evaluated at baseline and the end of the intervention.

The Minimental test improved significantly in the exercise group and did not change in the control group. Estimated VO-2max improved in women aged between 69 and 78 years. The distance walked in 6 minutes increased in all women of the experimental group. No changes in these parameters were observed in the control group.

A structured walking program improved cognitive function, estimated aerobic capacity, and walking distance in these diabetic women.
A structured walking program improved cognitive function, estimated aerobic capacity, and walking distance in these diabetic women.
Weight regain (WR) after bariatric surgery is common. Several factors involved in WR have been identified, but there has been little research on specific eating habits such as eating snacks rather than regular meals and being a "sweet-eater".

To determine whether nutritional status, energy and macronutrient intake, eating behaviors and habits were associated with WR in the postoperative period.

We conducted a case-control study of patients who had undergone bariatric surgery. Cases were defined as those patients who gained ≥ 15% of weight in the first two years after surgery and controls as those who gained < 15% of weight. Participants completed a 24-hour dietary recall by phone; weight history was obtained from the medical chart. H3B-120 mw Logistic regression was used to identify nutritional and behavioral factors significantly related to WR.

Fifty-four cases (77% female, 57% had undergone sleeve gastrectomy) and 50 controls (70% female, 58% had undergone Roux-en-Y gastric bypass surgery) participated. Their mean age was 43 and 40 years, respectively.
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