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Sociodemographic Factors Correlating With The Use of Complementary and Alternative Medicine Among Ethiopian Immigrants in The USA

Article Information

Fekadu Fullas1*, Bisrat Hailemeskel2, Anteneh Habte3, La’Marcus T Wingate2

1UnityPoint Health-St. Luke’s, Pharmacy Department, 2720 Stone Park Boulevard, Sioux City, IA 51104, USA
2College of Pharmacy, Howard University, 2300 4th Street, N.W., Washington DC, 20059, USA
3Veterans Affairs Medical Center, Martinsburg, WV 25405; West Virginia University School of Medicine, Harpers Ferry, WV 25405, USA

*Corresponding Author: Fekadu Fullas, Pharmacy Department, UnityPoint Health-St. Luke’s, 2720 Stone Park Blvd, Sioux City, IA 51104, USA; Tel 712-266-6156;

Received: 21 March 2018; Accepted: 05 April 2018; Published: 09 April 2018

Citation: Fekadu Fullas, Bisrat Hailemeskel, Anteneh Habte, La’Marcus T Wingate. Sociodemographic Factors Correlating With The Use of Complementary and Alternative Medicine Among Ethiopian Immigrants in The USA. J Pharm Pharmacol Res 2 (2018): 024-031.

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Abstract

Objective: To determine sociodemographic factors that help to predict the use of complementary and alternative medicine (CAM) by Ethiopian immigrants in the USA.

Methods:
A multicomponent survey was administered to over 350 Ethiopian immigrants to elicit information regarding their demographic characteristics and use of CAM. The primary dependent variable was use of CAM within the past 5 years. Descriptive statistics were utilized to characterize the sample in regards to gender, age, education, income and length of residency in the USA. Bivariate logistic regression analysis was used to determine which factors were associated with use of CAM. Multivariate logistic regression was utilized to evaluate which characteristics predicted use of CAM after adjusting for other variables.

Results: A bivariate logistic regression analysis of CAM use among Ethiopian immigrants in the USA showed that females were twice as likely as males to use herbs and supplements. Survey participants with some college or associate degree level education had 2.21 times greater odds for using herbs and supplements than those with only high school education. No association was discerned between herbs/supplements use and the categories of age and length of residency in the USA. In a multivariate logistic regression analysis, gender, some college level education and annual income greater than $100,000 showed significant association with the use of herbs and supplements.

Conclusion: Certain demographic characteristics such as gender, education and income can be useful in helping to predict which Ethiopian immigrants are more likely to use CAM.

Keywords

CAM; Ethiopian immigrants in the USA; Sociodemographic characteristics; Regression analysis

Article Details

1. Introduction

Various studies have reported the use of CAM among immigrant communities in the USA. Wu, et al [1] analyzed the pattern of Traditional Chinese Medicine (TCM) use among 198 Chinese patients from data obtained at two San Francisco community clinic sites. In the sample population, patient characteristics such as age, gender, educational level, years spent in the USA were analyzed [1]. A larger study was done on CAM use among 3,258 Chinese and Vietnamese Americans from data collected at 11 community health centers spread in eight cities across USA [2]. The study investigated TCM use pattern by socio-demographic categories. Similar studies have also been reported for Hispanic [3], Latino [4], Asian Indian [5] immigrants, as well as for multi-ethnic patients [6].

In two previous communications, we reported the results of a survey on the use of CAM among Ethiopian immigrants in the USA [7,8]. Of 206 survey respondents who used herbs and supplements, 180 also used one or more other CAM modalities, such as prayer, holy water, acupuncture, massage, incense burning, traditional manipulation (wegesha), chiropractice and biofeedback [7]. However, no information is available in the literature on the relationship of sociodemographic factors and the use of CAM among Ethiopian immigrants in the USA. In this paper, we explore the association between age, gender, educational level, income and length of residency in the USA and use of herbal products and supplements.

2. Methods

This study employed a cross sectional design to evaluate factors that were associated with use of herbs and supplements among Ethiopian immigrants in the United States. A pilot survey was designed to elicit information concerning the patterns of CAM use in the population of interest. The questionnaire was piloted among a small sample of randomly selected immigrants from Ethiopia who provided constructive feedback. The suggestions were synthesized to compose the survey administered to Ethiopian immigrants as a part of the study. Flyers describing the purpose of the study were placed at strategic locations with the greater Washington DC metropolitan area to promote participation of local Ethiopians. Additionally, flyers advertising the study were placed on several internet sites appealing to diverse ethnic audiences such as the People to People Inc. website.  Formal invitations to complete the survey were extended to a total of nearly 700 eligible contacts that were obtained from the People to People website.  Survey responses were collected from April 13 to August 31 of 2016 with the majority of the data being collected via SurveyMonkey®. A small fraction of the survey was administered face to face using paper forms. The study was approved by the Institutional Review Board at Howard University.

The primary dependent variable was self-reported use of supplements or herbal products within the past five years. Relevant independent variables included gender, age, education, annual family income, and length of residency in the U.S.  Descriptive statistics were employed in order to describe the sample in terms of sociodemographic characteristics.  Bivariate logistic regression was utilized to explore whether the independent variables were associated with the outcome variable. A multivariate logistic regression was utilized in order to determine which factors predicted use of CAM after adjusting for the other variables.  All analyses were conducted using SPSS version 24.

3. Results

A total of 700 individuals were invited to complete the study, out of which 355 provided usable responses. Nearly 61% of survey respondents were males (Table 1). Approximately 40% of respondents were 40 or younger, and nearly 44% of the respondents were 41 to 60. The vast majority of the sample had at least some college experience and approximately 62% had at least a bachelor’s degree. Approximately 39% of the sample population had an annual family income of less than $50,000, while nearly 30% of respondents indicated that their family income was higher than $100,000. The majority of respondents had been in the U.S. for longer than 15 years and about 58% of this group indicated that they had used herbs or supplements within the past five years.

Table 1:  Demographic and social characteristics of Ethiopian immigrant respondents*

Variable

Overall Sample
(n=355)

Reporting CAM Use
(n=206)

Prevalence of CAM use

 

Frequency (N) [%]

Frequency (N)

Percentage (%)

Gender

 

 

 

NR

5 (1.4)

3

60.0

Male

215 (60.6)

111

51.6

Female

135 (38.0)

92

68.1

Age

 

 

 

NR

3 (0.8)

3

100

18 to 40

140 (39.4)

82

58.6

41 to 60

156 (43.9)

91

58.3

Over 60

56 (15.8)

30

53.6

Education 1 (referent)

 

 

 

NR

6 (1.7)

3

50.0

Up to high school diploma or GED

45 (12.7)

20

44.4

Some college or associate’s degree

83 (23.4)

53

63.9

Bachelor’s degree or higher

221 (62.3)

130

58.8

Annual Family Income

 

 

 

NR

10 (2.8)

3

30.0

$0 to $50,000

140 (39.4)

88

62.9

$50,001 to $100,000

100 (28.2)

63

63.0

Above $100,000

105 (29.6)

52

49.5

 

 

 

 

Length of residency in U.S.

 

 

 

NR

6 (1.7)

3

50.0

Less than 5 years

60 (16.9)

32

53.3

6 to 15 years

103 (29.0)

62

60.2

More than 15 years

186 (52.2)

109

58.6

*CAM=Complementary and Alternative Medicine; NR=Not Reported; GED=General Equivalency Diploma; U.S.=United States

In a bivariate logistic regression analysis, the odds of females to report use of herbal products or supplements was 2.00 times greater than males (Table 2). Participants that had some college experience or an associate degree had 2.21 times greater odds to use herbs or supplements when compared to those that had not obtained at least a high school education. In a bivariate analysis, age and length of residency in the USA were determined not to be associated with the use of herbal products or supplements.

Table 2:  Binary logistic regression of variables associated with use of herbals or supplements in last 5 years among Ethiopian immigrants to the United States


Sociodemographic characteristics

OR (95% CI) for Use of Herbals/Supplements

P value*

Gender 

 

 

Male

1 (referent)

 

Female

2.01 (1.28-3.14)

0.002*

Age (in years)

 

 

18 to 40

1 (referent)

 

41 to 60

0.99 (0.62-1.57)

0.967

Over 60

0.82 (0.44-1.57)

0.523

Education

 

 

Less than 12th grade to High school diploma or GED

1

 

Some college or associate degree

2.21 (1.06-4.62)

0.036*

Bachelors or Master’s Degree

1.79 (0.94-3.41)

0.079

Annual Family Income

 

 

$0 to $50,000

1 (referent)

 

$50,001 to $100,000

1.01 (0.59-1.71)

0.982

Above $100,000

0.58 (0.35-0.97)

0.038*

Length of time in U.S.

 

 

Up to 5 years

1 (referent)

 

6 to 15 years

1.32 (0.70-2.52)

0.393

Over 15 years

1.24 (0.69-2.22)

0.473

CI=Confidence Interval; GED=General Equivalency Diploma; OR=Odds Ratio; U.S.=United States
*P values < 0.05 are significant.

In a multivariate logistic regression analysis, females had 2.20 times greater odds of using supplements or herbal products after adjusting for other variables (Table 3). In addition, individuals with at least some level of college educations were significantly more likely to use herbs and supplements after adjusting for covariates. Participants with annual family income of over $100,000 were significantly less likely to report use of CAM.

Table 3:  Multivariate logistic regression of variables associated with use of herbals or supplements in last 5 years among Ethiopian immigrants to the United States

Sociodemographic
characteristics

AOR (95% CI)
for Use of Herbals/Supplements

P value*

Gender 

 

 

Male

1 (referent)

 

Female

2.20 (1.35-3.58)

0.002*

Age 

 

 

18 to 40

1 (referent)

 

41 to 60

1.26 (0.71-2.21)

0.432

Over 60

1.12 (0.53-2.34)

0.771

Education

 

 

Less than 12th grade to High school diploma or GED

1 (referent)

 

Some college or associate degree

2.38 (1.07-5.29)

0.005*

Bachelors or Master’s Degree

3.16 (1.41-7.08)

0.752

Annual Family Income

 

 

$0 to $50,000

1 (referent)

 

$50,001 to $100,000

0.67 (0.36-1.27)

0.222

Above $100,000

0.35 (0.17-0.69)

0.003*

Length of time in U.S.

 

 

Up to 5 years

1 (referent)

 

6 to 15 years

1.77 (0.86-3.64)

0.120

Over 15 years

1.52 (0.72-3.21)

0.277

AOR=Adjusted Odds Ratio; CI=Confidence Interval; GED=General Equivalency Diploma; U.S.=United States
*P values < 0.05 are significant.

4. Discussion

Our finding that female survey participants used herbs and supplements more frequently than males is consistent with similar trends reported for Hispanic patients in Indianapolis, IN [3]. According to a national study comprised of 1,824 Asian Indians in the USA, females were 3.3 times more likely to use CAM and 1.8 times more likely to use herbs and dietary supplements [5]. The latter observation is in close alignment with our finding, where females were twice as likely to use CAM than men. It is also consistent with other studies which have shown similar trends [6, 9].

In our survey, we also found an association between level of education and CAM use. However, no question was included to determine if a specific field of study/major influenced the frequency of utilization. In a study released by the U.S. Department of Health and Human Services, it was reported that those with at least some college education were significantly more likely to use CAM than those that had high school education or less [10]. Although this report did not specifically focus on immigrant populations, the finding is strikingly similar to ours. By using a large pool of national data consisting of over 75,000 respondents, Burke et al. determined that respondents with lower educational levels cited lack of knowledge as a reason for non-use of common complementary health practices [11]. No specific question was included in our survey for reasons of non-use of CAM. However, it may be fair to speculate that the same reason could have contributed to non-use among our sample population.

A survey of ethnic minorities in the USA (n = 3,452) showed a higher rate of CAM use among female respondents and those having higher educational levels than for males and lower educational levels. Female gender and higher education were predictors of CAM use. Although not significant, those with annual income levels between $25,000 and 50,000 were slightly higher users than those having lower or higher incomes than this range [12]. A study by Chan and co-workers reported that being female, having higher education and higher income levels were associated with higher rates of CAM use [13]. Our study results are consistent with this finding in regards to gender and higher education levels, but at variance with CAM use and income levels. Unlike the study by Chan et al., our study showed negative association between CAM use and income levels. This can perhaps be explained by a hypothesis that first generation immigrants in general tend to have a low paying job not commensurate with their level of education.

In a large national survey, Eisenberg and co-investigators reported significant association between use of alternative therapies and in turn gender, educational level and income [14]. The study showed that CAM use was more frequent for women, some college level education and annual income levels above $50,000 than for survey respondents who are males, have no college education and reported annual income levels less than $50,000. This observation is in close agreement with our finding in these categories. With reference to income levels, in a multivariate regression analysis, it was determined that our survey respondents who used CAM at a significantly higher rate had annual incomes between $50,000 and 100,000, compared to those with income levels greater than $100,000 (p = 0.003) [Table 3].

5. Conclusion

Logistic regression analysis of complementary and alternative medicine (CAM) use among Ethiopian immigrants in the USA showed gender, education level and income to be significant predictors of CAM use. Age and length of residency in the USA did not have significant correlation with the use CAM.

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