Weight-control intervention in overweight subjects at high risk of cardiovascular disease: a trial of a public health practical training program in a medical school

Nagako Okuda, Tomonori Okamura, Takashi Kadowaki, Taichiro Tanaka, Hirotsugu Ueshima

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

OBJECTIVE: To evaluate the effectiveness of a weight-control intervention for overweight subjects at high risk of cardiovascular disease (CVD) at a worksite conducted by medical students as a public health practical training program. METHODS: A total of 45 men and women who were obese (BMI > or = 24.0 kg/m2) and found to be hypertensive (SBP > or = 140 mmHg or DBP > or = 90 mmHg) or suffering from hypercholesterolemia (total serum cholesterol > or = 220 mg/dl) in an annual health check up in November 2001 were invited to participate in a weight-control intervention program. Eight individuals agreed (intervention group) and other sixteen control subjects whose sex and age (+/- 3 years) were matched to the intervention subjects were selected. The duration of the program was three months (from July to October 2002) and a 2 kg weight reduction in that period was set as the goal. The baseline survey consisted of a dietary questionnaire and a health quiz. Subjects had two counseling sessions and received four personal letters in the three months. A semi-quantitative food frequent questionnaire, a photograph method (Diet Agent Service, Matsushita Electric Works, Ltd.) and three day food records were conducted for dietary surveys. Changes in bodyweight, BMI, blood pressure, and serum total cholesterol concentration from November 2001 to November 2002 were compared between the intervention and control groups. Food group intakes and nutrient intakes were compared between weight reduction achievers and non-achievers. RESULTS: Mean bodyweight changes from November 2001 to November 2002 were -2.3 kg (SD 3.3 kg) for the intervention group and +0.3 kg (SD 1.5 kg) for the control group, the difference being significant (p = 0.013). For the intervention group mean bodyweight change from July to October 2002 was -1.5 kg (SD 2.4 kg). For total serum cholesterol, the mean changes were -32.1 mg/dl vs. +0.5 mg/dl (p = 0.005), for SBP -9.5 mmHg vs. +4.7 mmHg (p = 0.083) and for DBP -2.8 mmHg vs. +1.4 mmHg (p = 0.438). These were thought to be consequences of weight-control intervention. From dietary surveys, weight reduction achievers increased fish intake and decreased fats, snacks and sweets. Those who answered the health quiz more correctly demonstrated more reduction of bodyweight. CONCLUSIONS: Effectiveness of a weight-control intervention for reduction of CVD risk factors was found in the present public health practical training program for medical students. Dietary advice based on various dietary surveys was indicated to be effective in the weight-control program. A population strategy to distribute health information appeared necessary for effective health education programs for high-risk subjects.

Original languageEnglish
Pages (from-to)552-560
Number of pages9
Journal[Nippon kōshū eisei zasshi] Japanese journal of public health
Volume51
Issue number7
Publication statusPublished - 2004
Externally publishedYes

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Medical Schools
Cardiovascular Diseases
Public Health
Education
Weights and Measures
Weight Loss
Cholesterol
Health
Medical Students
Food
Serum
Control Groups
Snacks
Hypercholesterolemia
Health Education
Workplace
Surveys and Questionnaires
Counseling
Fishes
Eating

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Weight-control intervention in overweight subjects at high risk of cardiovascular disease : a trial of a public health practical training program in a medical school. / Okuda, Nagako; Okamura, Tomonori; Kadowaki, Takashi; Tanaka, Taichiro; Ueshima, Hirotsugu.

In: [Nippon kōshū eisei zasshi] Japanese journal of public health, Vol. 51, No. 7, 2004, p. 552-560.

Research output: Contribution to journalArticle

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abstract = "OBJECTIVE: To evaluate the effectiveness of a weight-control intervention for overweight subjects at high risk of cardiovascular disease (CVD) at a worksite conducted by medical students as a public health practical training program. METHODS: A total of 45 men and women who were obese (BMI > or = 24.0 kg/m2) and found to be hypertensive (SBP > or = 140 mmHg or DBP > or = 90 mmHg) or suffering from hypercholesterolemia (total serum cholesterol > or = 220 mg/dl) in an annual health check up in November 2001 were invited to participate in a weight-control intervention program. Eight individuals agreed (intervention group) and other sixteen control subjects whose sex and age (+/- 3 years) were matched to the intervention subjects were selected. The duration of the program was three months (from July to October 2002) and a 2 kg weight reduction in that period was set as the goal. The baseline survey consisted of a dietary questionnaire and a health quiz. Subjects had two counseling sessions and received four personal letters in the three months. A semi-quantitative food frequent questionnaire, a photograph method (Diet Agent Service, Matsushita Electric Works, Ltd.) and three day food records were conducted for dietary surveys. Changes in bodyweight, BMI, blood pressure, and serum total cholesterol concentration from November 2001 to November 2002 were compared between the intervention and control groups. Food group intakes and nutrient intakes were compared between weight reduction achievers and non-achievers. RESULTS: Mean bodyweight changes from November 2001 to November 2002 were -2.3 kg (SD 3.3 kg) for the intervention group and +0.3 kg (SD 1.5 kg) for the control group, the difference being significant (p = 0.013). For the intervention group mean bodyweight change from July to October 2002 was -1.5 kg (SD 2.4 kg). For total serum cholesterol, the mean changes were -32.1 mg/dl vs. +0.5 mg/dl (p = 0.005), for SBP -9.5 mmHg vs. +4.7 mmHg (p = 0.083) and for DBP -2.8 mmHg vs. +1.4 mmHg (p = 0.438). These were thought to be consequences of weight-control intervention. From dietary surveys, weight reduction achievers increased fish intake and decreased fats, snacks and sweets. Those who answered the health quiz more correctly demonstrated more reduction of bodyweight. CONCLUSIONS: Effectiveness of a weight-control intervention for reduction of CVD risk factors was found in the present public health practical training program for medical students. Dietary advice based on various dietary surveys was indicated to be effective in the weight-control program. A population strategy to distribute health information appeared necessary for effective health education programs for high-risk subjects.",
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T2 - a trial of a public health practical training program in a medical school

AU - Okuda, Nagako

AU - Okamura, Tomonori

AU - Kadowaki, Takashi

AU - Tanaka, Taichiro

AU - Ueshima, Hirotsugu

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N2 - OBJECTIVE: To evaluate the effectiveness of a weight-control intervention for overweight subjects at high risk of cardiovascular disease (CVD) at a worksite conducted by medical students as a public health practical training program. METHODS: A total of 45 men and women who were obese (BMI > or = 24.0 kg/m2) and found to be hypertensive (SBP > or = 140 mmHg or DBP > or = 90 mmHg) or suffering from hypercholesterolemia (total serum cholesterol > or = 220 mg/dl) in an annual health check up in November 2001 were invited to participate in a weight-control intervention program. Eight individuals agreed (intervention group) and other sixteen control subjects whose sex and age (+/- 3 years) were matched to the intervention subjects were selected. The duration of the program was three months (from July to October 2002) and a 2 kg weight reduction in that period was set as the goal. The baseline survey consisted of a dietary questionnaire and a health quiz. Subjects had two counseling sessions and received four personal letters in the three months. A semi-quantitative food frequent questionnaire, a photograph method (Diet Agent Service, Matsushita Electric Works, Ltd.) and three day food records were conducted for dietary surveys. Changes in bodyweight, BMI, blood pressure, and serum total cholesterol concentration from November 2001 to November 2002 were compared between the intervention and control groups. Food group intakes and nutrient intakes were compared between weight reduction achievers and non-achievers. RESULTS: Mean bodyweight changes from November 2001 to November 2002 were -2.3 kg (SD 3.3 kg) for the intervention group and +0.3 kg (SD 1.5 kg) for the control group, the difference being significant (p = 0.013). For the intervention group mean bodyweight change from July to October 2002 was -1.5 kg (SD 2.4 kg). For total serum cholesterol, the mean changes were -32.1 mg/dl vs. +0.5 mg/dl (p = 0.005), for SBP -9.5 mmHg vs. +4.7 mmHg (p = 0.083) and for DBP -2.8 mmHg vs. +1.4 mmHg (p = 0.438). These were thought to be consequences of weight-control intervention. From dietary surveys, weight reduction achievers increased fish intake and decreased fats, snacks and sweets. Those who answered the health quiz more correctly demonstrated more reduction of bodyweight. CONCLUSIONS: Effectiveness of a weight-control intervention for reduction of CVD risk factors was found in the present public health practical training program for medical students. Dietary advice based on various dietary surveys was indicated to be effective in the weight-control program. A population strategy to distribute health information appeared necessary for effective health education programs for high-risk subjects.

AB - OBJECTIVE: To evaluate the effectiveness of a weight-control intervention for overweight subjects at high risk of cardiovascular disease (CVD) at a worksite conducted by medical students as a public health practical training program. METHODS: A total of 45 men and women who were obese (BMI > or = 24.0 kg/m2) and found to be hypertensive (SBP > or = 140 mmHg or DBP > or = 90 mmHg) or suffering from hypercholesterolemia (total serum cholesterol > or = 220 mg/dl) in an annual health check up in November 2001 were invited to participate in a weight-control intervention program. Eight individuals agreed (intervention group) and other sixteen control subjects whose sex and age (+/- 3 years) were matched to the intervention subjects were selected. The duration of the program was three months (from July to October 2002) and a 2 kg weight reduction in that period was set as the goal. The baseline survey consisted of a dietary questionnaire and a health quiz. Subjects had two counseling sessions and received four personal letters in the three months. A semi-quantitative food frequent questionnaire, a photograph method (Diet Agent Service, Matsushita Electric Works, Ltd.) and three day food records were conducted for dietary surveys. Changes in bodyweight, BMI, blood pressure, and serum total cholesterol concentration from November 2001 to November 2002 were compared between the intervention and control groups. Food group intakes and nutrient intakes were compared between weight reduction achievers and non-achievers. RESULTS: Mean bodyweight changes from November 2001 to November 2002 were -2.3 kg (SD 3.3 kg) for the intervention group and +0.3 kg (SD 1.5 kg) for the control group, the difference being significant (p = 0.013). For the intervention group mean bodyweight change from July to October 2002 was -1.5 kg (SD 2.4 kg). For total serum cholesterol, the mean changes were -32.1 mg/dl vs. +0.5 mg/dl (p = 0.005), for SBP -9.5 mmHg vs. +4.7 mmHg (p = 0.083) and for DBP -2.8 mmHg vs. +1.4 mmHg (p = 0.438). These were thought to be consequences of weight-control intervention. From dietary surveys, weight reduction achievers increased fish intake and decreased fats, snacks and sweets. Those who answered the health quiz more correctly demonstrated more reduction of bodyweight. CONCLUSIONS: Effectiveness of a weight-control intervention for reduction of CVD risk factors was found in the present public health practical training program for medical students. Dietary advice based on various dietary surveys was indicated to be effective in the weight-control program. A population strategy to distribute health information appeared necessary for effective health education programs for high-risk subjects.

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