Review Article
Construction Formula of Biological Age Using the Principal Component Analysis
Table 1
The basic information of study population.
| | Researcher | Year | Country | Sample size | Age range | Health standard |
| | Nakamura et al. [17] | 1989 | Japan | 69 males | Average 42.6 ± 9.4 years | Healthy population | | Nakamura et al. [18] | 1990 | Japan | 66 females | 20–64 years | Healthy population | | Nakamura et al. [19] | 1996 | Japan | 221 males | 20–85 years | Healthy population | | Ueno et al. [20] | 2003 | Japan | 981 females (cross-sectional study)
110 females (longitudinal study) | 20–80 years | Healthy population | | Nakamura and Miyao [7] | 2003 | Japan | 86 males | 31–77 years | Healthy population, including some volunteers with hypertension, hyperlipidemia, and diabetes | | Nakamura and Miyao [21] | 2007 | Japan | 86 males | 31–78 years | Healthy population, including some volunteers with hypertension, hyperlipidemia, and diabetes | | Nakamura and Miyao [22] | 2008 | Japan | 86 males
93 females
Males : females = 0.925 : 1 | 31–77 years | Healthy population, including some volunteers with hypertension, hyperlipidemia, and diabetes | | Park et al. [23] | 2009 | Korea | 1588 | 30–77 years | Healthy population | | Bai et al. [12] | 2010 | China | 392 males
460 females
Males : females = 0.852 : 1 | 30–98 years | Healthy population and some volunteers with subclinical state | | Jee et al. [11] | 2012 | Korea | 1604 males
760 females
Males : females = 2.111 : 1 | 30–85 years | Healthy population and some volunteers with early state of diseases | | Zhang et al. [24] | 2014 | China | 669 males
684 females
Males : females = 0.978 : 1 | 35–91 years | Healthy population | | Zhang et al. [25] | 2014 | China | 69 males
70 females
Males : females = 0.986 : 1 | 35–91 years | Healthy population |
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