Calcium Intake and Associated Factors in a General Japanese Population: Baseline Data of NIPPON DATA80/90 and the National Nutrition Survey

Background Lower socioeconomic status (SES) may be related to inactivity lifestyle; however, the association between SES and physical inactivity has not been sufficiently investigated in Japan. Methods The study population is the participants of NIPPON DATA2010, which is a prospective cohort study of the National Health and Nutrition Survey 2010 in Japan. They were residents in 300 randomly selected areas across Japan. This study included 2,609 adults. Physical activity was assessed by physical activity index (PAI) calculated from activity intensity and time. The lowest tertile of PAI for each 10-year age class and sex was defined as physical inactivity. Multivariable logistic regression analyses were conducted to examine the association of SES (employment status, educational attainment, living status, and equivalent household expenditure (EHE)) with physical inactivity. Results In the distribution of PAI by age classes and sex, the highest median PAI was aged 30–39 years among men (median 38.6), aged 40–49 years among women (38.0), and median PAI was decreased with increasing age. Multivariable-adjusted model shows that not working was significantly associated with physical inactivity after adjustment for age in all age groups and sexes. Not living with spouse for adult women and elderly men was significantly associated with physical inactivity compared to those who living with spouse. However, neither educational attainment nor EHE had any significant associations with physical inactivity. Conclusions The result indicated that physical inactivity was associated with SES in a general Japanese population. SES of individuals need to be considered in order to prevent inactivity lifestyle.

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Is the national nutrition survey in Japan representative of the entire Japanese population?

Nutrition ◽

10.1016/j.nut.2005.02.004 ◽

2005 ◽

Vol 21 (9) ◽

pp. 964-966 ◽

Cited By ~ 11

Author(s):

Kota Katanoda ◽

Hiroshi Nitta ◽

Kunihiko Hayashi ◽

Yasuhiro Matsumura

Keyword(s):

Japanese Population ◽

Nutrition Survey ◽

National Nutrition Survey

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Association between socioeconomic status and prolonged television viewing time in a general Japanese population: NIPPON DATA2010

Environmental Health and Preventive Medicine ◽

10.1186/s12199-021-00978-6 ◽

2021 ◽

Vol 26 (1) ◽

Author(s):

Yuka Sumimoto ◽

◽

Masahiko Yanagita ◽

Naomi Miyamatsu ◽

Nagako Okuda ◽

...

Keyword(s):

Socioeconomic Status ◽

Japanese Population ◽

Viewing Time ◽

Education Attainment ◽

Sedentary Behaviors ◽

Age Classes ◽

Nutrition Survey ◽

Tv Viewing ◽

General Japanese Population ◽

The Mean

Abstract Background It has been pointed out that prolonged television (TV) viewing is one of the sedentary behaviors that is harmful to health; however, the association between socioeconomic status (SES) and prolonged TV viewing time has not been sufficiently investigated in Japan. Methods The study population are the participants of NIPPON DATA2010, which is a prospective cohort study of the National Health and Nutrition Survey 2010 in Japan. They were residents in 300 randomly selected areas across Japan. This study included 2752 adults. SES was classified according to the employment status, educational attainment, living status, and equivalent household expenditure (EHE). Prolonged TV viewing time was defined as more than or equal to 4 h of TV viewing per day. Multivariable logistic regression analyses were conducted to examine the association of SES with prolonged TV viewing time. Results The mean TV viewing time was 2.92 h in all participants. Of 2752 participants, 809 (29.4%) prolonged TV viewing, and the mean TV viewing time of them was 5.61 h. The mean TV viewing time in participants without prolonged TV viewing time was 1.81 h. The mean TV viewing time was prolonged as age classes increased and significantly longer in aged ≥60 years. Prolonged TV viewing time was associated with not working for all age classes and sexes. Only among women, education attainment and living status were also associated with prolonged TV viewing time. For education attainment, the lower the received years of education, the higher odds ratios (OR) of prolonged TV viewing time. For living status, in women aged <60 years, living with others had a significantly higher OR compared to living with spouse. On the other hand, in women aged ≥60 years, living alone had a significantly higher OR. EHE did not have any significant associations with prolonged TV viewing time. Conclusions In a general Japanese population, it should be noted that the association between SES and prolonged TV viewing time differed by age and sex. Particularly, it must draw attention to the prolonged TV viewing in elderly. The intervention in order to shorten TV viewing time needs to consider these attributes.

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