Table 1.
Normal hemoglobin subfractions eluted with A1C using the HPLC method.
Table 2.
Multiple regression analysis of the associations of age, BMI, smoking and allergy with RVs of hemoglobin subfractions.
Fig 1.
Distributions of RVs for six Hb subfractions partitioned by sex and age categories (<30, 30–39, 40–49 and ≥50 years).
RVs of Hb subfraction were partitioned by sex (male: M, female: F) and age-subgroups (∼29, 30–39, 40–49, 50∼). The box in the center of each scattergram indicates the mid 50% range of RVs, and its central vertical bar represents the median. The data size of each subgroup is shown at the right bottom of the age group labels. On top of each graph, values of SD ratio (SDR) for sex and age (SDRsex, SDRage) are shown, which represent the magnitude of between-group differences of RVs after partitioning by sex and age, respectively.
Table 3.
Standard deviation ratios (SDR) for (A) the influence of sex, age, and BMI on different Hb subfractions, and (B) the influence of age on A1C and other Hb subfractions in male and female subjects.
Table 4.
The list of RIs summary with 90% confidence interval adopted without sex consideration.
Fig 2.
Comparison of RIs for hemoglobin A1C across nine countries.