Journal List > Korean J Adult Nurs > v.27(3) > 1076325

Lee and Park: Predictors of Self-care Behaviors among Elderly with Hypertension using Quantile Regression Method

Abstract

Purpose

The objective of this study was to identify the predictors of self-care behaviors among elderly patients with hypertension using quantile regression method.

Methods

A total of 253 elderly patients diagnosed with hypertension was recruited via 3 different medical clinics for the study. The quantile regression and a liner regression was conducted using Stata 12.0 program by analyzing predictors of self-care behaviors.

Results

In the ordinary least square, self-efficacy, period of disease, and education level explained 42% of the variance in self-care activities. In the quantile regression, affecting predictors of self-care behaviors were self-efficacy for all quantiles, the period of disease for from 60% quantile to 90% quantile, education level for 20%, 30%, and 50% quantiles, economic status for 10%, 50%, and 60% quantiles, age for 10%, 70% quantiles, fatigue for 10% quantile, knowledge about hypertension for 10% and 20% quantiles, and depression for 30% and 40% quantiles.

Conclusion

The affecting predictors of self-care behaviors among elderly with hypertension were different from the level of self-care behaviors. These results indicated the significance in assessing predictors according to the level of self-care behaviors when clinical nurses examine the patients' health behaviors and plan any intervention strategies. Specially, education level and knowledge about hypertension were the significant predictors of self-care activities for low quantiles. Clinical nurses may promote self-care activities of the given population though health education programs.

Figures and Tables

Table 1

Test for Homogeneity of Demographic Characteristics of Elderly Patients with Hypertension (N=255)

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Table 2

Self-care Behavior Scores with Respect to Characteristics of Elderly Patients with Hypertension (N=255)

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Table 3

The Scores of Self-care Behavior, Self-efficacy, Knowledge, Family Support, Depression and Fatigue among Elderly Patients with Hypertension (N=255)

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Table 4

The Relationship of Affecting Factors and Self-care Behavior (N=255)

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Table 5

The Comparison between Ordinary Least Square Result and Quantile Regression Result on the Impacting Factor of Self-care Behavior (N=255)

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OLS=ordinary least square; QR=quantile regression; Coef.=coefficient, SE=standard errors; *p<.05; **p<.01.

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