Distribution of serum lipoprotein(a) levels--a non-parametric analysis

Area of Science:

• Cardiovascular Medicine
• Biochemistry
• Epidemiology

Background:

• Lipoprotein(a) [Lp(a)] is a lipoprotein particle implicated in cardiovascular disease.
• Understanding Lp(a) concentration distribution is crucial for assessing cardiovascular risk.

Purpose of the Study:

• To analyze the distribution of serum Lp(a) in Japanese male adults.
• To investigate the association between Lp(a) levels and coronary artery conditions.

Main Methods:

• Non-parametric statistical methods were employed.
• Serum Lp(a) concentrations were measured and analyzed.
• Coronary angiography was used to assess coronary artery health.

Main Results:

• Serum Lp(a) exhibited a skewed distribution towards lower levels in healthy Japanese males, with a median of 14.1 mg/dl.
• Higher Lp(a) levels were observed in subjects with vasospastic angina and those with increased coronary artery stenosis.
• Elevated Lp(a) was identified as a risk factor for ischemic heart disease, with odds ratios of 2.52 and 2.94 at cut-off values of 26.7 mg/dl and 30 mg/dl, respectively.

Conclusions:

• The distribution of serum Lp(a) in Japanese males follows a power normal distribution.
• Serum Lp(a) concentration is a valuable indicator for estimating coronary atherogenic risk and identifying individuals at higher risk for ischemic heart disease.