American Journal of Applied Psychology
Volume 4, Issue 4, July 2015, Pages: 105-110

Factors Affecting Readiness to Change among Literate Obese Patients in Primary Care

Oyebanji Ayodele Emmanuel1, Dankyau Musa2, *

1Department of Family Medicine, Brigade Medical Centre, Yola, Nigeria

2Department of Family Medicine, Bingham University Teaching Hospital, Jos, Nigeria

Email address:

(O. A. Emmanuel)
(D. Musa)

To cite this article:

Oyebanji Ayodele Emmanuel, Dankyau Musa. Factors Affecting Readiness to Change among Literate Obese Patients in Primary Care. American Journal of Applied Psychology. Vol. 4, No. 4, 2015, pp. 105-110. doi: 10.11648/j.ajap.20150404.14


Abstract: Background: Obesity is a chronic disease which contributes to morbidity and mortality from non-communicable diseases. Urbanization, western lifestyles and demographic transition contribute to this problem in Nigeria. Primary care physicians should be active in early detection, and motivating obese people for life style change. Motivation is an important first step towards any action or behaviour change and clinicians can assess and enhance motivation to change before extensive damage is done to health, relationships, reputation, or self-image. Aims: To determine pattern and predictive factors for readiness to change among literate obese patients in primary care. Methods and Materials: A cross-sectional study was conducted between July and October 2012, among literate obese patients in the outpatient department of an urban hospital. Obese patients were identified by clinical examination, and readiness to change was measured with the University of Rhode Island Change Assessment (URICA) score. Results: Prevalence of obesity was 17.43%. Most of the subjects were married (83.8%), female (76.5%) had tertiary education (64.7%) and from professional cadre (54.4%). Mean age was 43.5±9.2. Majority (69.1%) felt that they were motivated (self- perception) to lose weight, but most (58%) were not confident that they could lose weight (self-efficacy). Based on the URICA score, most (73.5%)of the literate obese patients were contemplators. There were no significant predictors of the stage of change. Conclusion: Obesity is common among literate patients in the outpatient setting. The mean URICA score was 8.68±1.68, and most were in contemplation stage.

Keywords: Obesity, Weight Loss, Lifestyle, Stages of Change, URICA


1. Introduction

Obesity is a chronic multifactorial disease that involves an imbalance of energy intake and caloric expenditure, and is influenced by socioeconomic status, cultural, psychological, environmental, metabolic and genetic factors as well as lifestyle.1 Although several classifications and definitions for degrees of obesity are accepted, the most widely accepted classifications are those from the World Health Organization (WHO), based on Body Mass Index (BMI).2 BMI (Quetelet index) is calculated by dividing the weight (in Kg) by the square of the height (in metres).2 BMI has the advantage of not being age, gender or ethnicity specific.3 Other measurements of fat distribution include the waist–hip ratio and body fat percentage.4 BMI is an accurate reflection of body fat percentage in the majority of the adult population.3,4 Based on BMI, WHO classifies obesity into the following categories;

1. Underweight BMI=<18.5 kg/m2

2. Ideal or normal BMI = 18.5 to 24.9 kg/m2

3. Overweight BMI = 25.0 to 29.9 kg/m2

4. Obese BMI ≥ 30.0 kg/m2

    i.        Obesity class 1= 30-34.9 kg/m2

   ii.        Obesity class 2= 35-39.9 kg/m2

 iii.        Extreme obesity, BMI ≥ 40.0 kg/m2 (known as morbid obesity)

Some authors use a different classification to recognize particularly severe obesity as follows:2-5

1.   Severe obesity - BMI greater than 40 kg/m2

2.   Morbid obesity - BMI of 40-50 kg/m2

3.   Super obesity - BMI greater than 50 kg/m2

Waist Circumference (WC) greater than 88cm in women and WC greater than 102cm in men are also used as measures of central obesity, while that measured by BMI is referred to as generalized obesity.5 It is less accurate in body builders and pregnant women.5,6Based on BMI, the prevalence of obesity in the United States was found to be 33.8% in a survey conducted from 2007 to 2008,7 while in the United Kingdom, the prevalence is 23% among men and 24% among women.8 In Ghana obesity is found in 13.6% of adults,9 while in Republic of Benin, it is found in 18% of adults.10Abubakari et al reported a prevalence of 10% in the West African sub-region with the odds of being obese being 3.2 among urban women compared to men.11 Nutritional transition as a result of urbanization, adoption of western lifestyles and demographic transition are implicated for the rising prevalence.12 Obesity is associated with increased prevalence of non-communicable diseases such as hypertension, insulin resistant type 2 diabetes mellitus, hypercholesterolemia and coronary heart disease.1 When these occur in conjunction with obesity outcomes are worsened, hence the need for prevention, early detection and motivating people for life style change.1 Obesity is a serious and growing health problem, but it is not receiving the attention it deserves from primary care practitioners.13

Motivation pervades all activities of life, operating in multiple contexts.14 It is the driving force by which humans achieve their goals, and could be intrinsic or extrinsic.15,16Motivation for change involves having the belief that changing one’s behaviour can influence an outcome.15,16 Consequently, motivation can be modified or enhanced at many points in the change process.17-20 Clients may not have to experience terrible, irreparable consequences of their behaviours to become aware of the need for change.17-20 Sayings such as "You can lead a horse to water, but you can’t make it drink" reflect the fact that people generally will not perform desired behaviours unless or until they are motivated to do so.18Client motivation for change is not a single attribute, but varies in intensity, 16and is critical for behavioural weight loss programmes.16-20

The role of the motivational type cognitive process in changing behaviour became a question of great importance in the field of psychology in the 1970s.18-20The development of the motivational interview in the 80s also emphasised the importance of motivation.18-20

Research investigating sources of motivation for change typically have compared intrinsic sources of motivation (e.g. feeling a sense of accomplishment, spiritual experiences and health concerns) with extrinsic sources (e.g., financial incentives, social and situational influences).16-20

2. URICA Tool for Measuring Motivation

Motivation is measured in highly variable and interchangeable ways.21McConnaughy, and colleagues, created a stages-of-change measure, which was aptly named the "Stages of Change Scale"; it was later renamed the University of Rhode Island Change Assessment (URICA).22 It is the most widely studied generic measure of readiness for change.16,22,23 One reason is due to its focus on a general "problem," whereas other measures specify the target behaviour (e.g. smoking) and typically provide a timeline or frequency of usage.16,22,23 Consequently, URICA can be used to assess change readiness regarding a range of problemsincluding, obesity, and diet and weight management.23,24 The URICA has various versions (12 item, 24 item and 32 item), with higher scores indicating a greater Readiness To Change score (RTC).22

The URICA 32-item self-report measure includes subscales measuring the Prochaska’s trans-theoretical model of stages of change: PC, C, A, and M (Pre-contemplation, contemplation, action and maintenance). Responses are given on a 5-point Likert scale ranging from 1 (strong disagreement) to 5 (strong agreement).16 The subscales can be combined arithmetically (C + A + M − PC) to yield a second-order continuous RTC score that can be used to assess RTC at entrance to treatment.16 The 32 item version provides a continuous measure of differences in attitude for individuals in each of the four distinct stages of change, thus generating a readiness profile rather than discrete placement at any particular stage.22

Some researchers have argued that the scores are not adequately measuring the same underlying stages of change process.24Despite these criticisms, multidimensional approaches like the URICA, continue to be popular among clinicians and researchers. In a study including many African Americans, the construct validity of the URICA score was reported to be 0.8, for pre-contemplation, 0.83 for contemplation, 0.67 for action, and 0.85 for maintenance.25

This study was aimed at determining the pattern and predictorsof readiness for life style change among literate obese patients in a primary care setting in urban Nigeria. This was the first stage of a study which aimed to examine the effect of counselling on motivation for life-style change in literate obese patients.

3. Methods

This study was carried out between July and October 2012. A total of 68 patients were recruited for the study. A structured questionnaire was administered to elicit socio-demographic information. Anthropometric data were obtained by physical examination. Weight was measured to the nearest 0.5kg using a weighing scale with the participants wearing light clothing and removing footwear. Height was measured to the nearest 0.5cm using a stadiometer. The BMI was calculated as weight in kilograms divided by the square of the height in metres. The WC was measured at the level of the iliac crest, using a flexible tape passing along the umbilical level of the unclothed abdomen. Based on the WHO criteria for obesity, participants who’s BMI were up to 30kg/m2 and above were regarded as obese.

Motivation was measured using the URICA questionnaire. The total URICA score (RTC score) was calculated for each patient. This was used to classify patients into TTM stage of change group as follows:

1.   Readiness to change score of <8: Pre-contemplation.

2.   Readiness to change score of 8-12: Contemplation.

3.   Readiness to change score of >12: Preparation to action.

Self-efficacy was measured using a five point Likert scale.

Ethics: Approval for the study was obtained from the Health Research Ethics committee of the Bingham University Teaching Hospital Jos. Informed consent was obtained from each participant.

Statistics: Statistical Package for Social Sciences (SPSS) version 20 software was used for data analysis. Mean values and standard deviations were calculated for continuous variables, and the means compared using independent sample t-test. Pearson chi square was used to test for bivariate relationships while multinomial regression was used to test for multivariate relationships. Values of P< 0.05 were considered statistically significant.

4. Results

The prevalence rate of obesity was 17.43% among patients. Most of the subjects were married (83.8%), female (76.5%) had tertiary education (64.7%) and were of the professional cadre (54.4%) while 41.1% were self-employed. Majority (38.2%) of the participants were in the 41-50yr age group (mean age was 43.5±9.2) and earned more than forty thousand naira. Most of the participants (69.1%) felt that they were motivated (self- perception) to lose weight but majority of them (58%) were not confident that they could lose weight (self-efficacy). Most (67.7%) had at least one co-morbidity. Other details are in Table 1.

Table 1. Socio-demographic characteristics of the study population.

Variable Number (N) Percentage (%)
Age group (years)
•  21-30 3 4.4
•  31-40 24 35.3
•  41-50 26 38.2
•  51-60 13 19.1
•  >60 2 2.9
Sex
•  Female 52 76.5
•  Male 16 23.5
Marital status    
•  Divorced 2 2.94
•  Married 57 83.82
•  Single 7 10.30
•  Widowed 2 2.94
Educational status
•  Primary 13 19.1
•  Secondary 11 16.2
•  Tertiary 44 64.7
Occupational group
•  Manual worker 2 2.9
•  Self-employed 28 41.2
•  Professional 37 54.4
•  Unemployed 1 1.5
Monthly income group (Naira)
•  0-10,000 10 14.7
•  10,001-20,000 7 10.3
•  20,001-30,000 13 19.1
•  30,001-40,000 3 4.4
•  >40,000 35 51.5
Ethnic group
•  Igbo 13 19.1
•  Berom 7 10.3
•  Igala 4 5.9
•  Yoruba 4 5.9
•  Others (25) 40 58.8
Self-perception of motivation to change
•  Yes 47 69.1
•  No 21 30.9
Self-assessment of efficacy
•  Yes 28 41.2
•  No 40 58.8
Illness presentation
Nil 22 32.4
•  Hypertension 14 20.6
•  Arthritis 6 8.8
•  Diabetes mellitus 3 4.4
•  Others (18) 23 33.8

Anthropometric measurements of the study participants.

The mean weight was 100.2±12.69Kg, mean height was 1.63±0.09m, and mean BMI was 37.6+4.3(Kg/m2). The males had a mean abdominal circumference of 119.3±17.3cm while that of the females was 111.2±8.9cm.

DISTRIBUTION OF BMI: Most of the participants (45.6%) were in obese class II. Other details are in Table 2.

Table 2. Distribution of bmi in the study

BMI group (Kg/m2) Number Percentage
30-34.9 (I) 18 26.5
35-39.9 (II) 31 45.6
≥40 (III) 19 27.9
Total 68 100

URICA SCORE: Based on the URICA score, the mean readiness to change score was 8.68±1.68. Most of the study participants were contemplators (73.5%). Details are in Table 3.

Table 3. Urica score distribution table.

Readiness to change group Number Percentage
<8 (Pre-contemplation) 17 25
8-12 (Contemplation) 50 73.5
>12 (Preparation) 1 1.5
Total 68 100

Multiple logistic regression did not reveal any significant relationship between readiness to change category and key socio-demographic variables as shown in Table 4.

Table 4. Multinomial logistic regression table of factors predicting readiness to change in study population.

Variables Wald statistic P Value Adjusted Odds ratio (95%CI)
Occupation (Professional) 0.76 0.38* 0.49 (0.10-2.43)
Gender (Female) 0.50 0.48* 1.71 (0.39-7.53)
Marital status (married) 0.78 0.38* 0.51 (0.11-2.30)
Ethnic group (Igbo) 0.05 0.82* 1.22 (0.23-6.57)
Age (<50 years) 0.05 0.82* 0.85 (0.20-3.60)
Education (tertiary) 0.02 0.89* 1.14 (0.18-7.38)
Income group (> N40,000) 0.04 0.84* 1.14 (0.31-4.17)
Self- perception of motivation (yes) 0.001 0.98* 1.02 (0.22-4.75)
Self-efficacy (No) 0.28 0.60* 1.47 (0.36-6.08)
Illness presentation (Nil) 0.19 0.66* 1.36 (0.34-5.39)

5. Discussion

Obesity is one of the greatest public health challenges of the 21st century. Its prevalence has tripled in many countries worldwide since the 1980s, and continues to rise at an alarming rate, particularly in developing countries.2

The prevalence of obesity in this study was 17.43%. This is comparable with other studies by Wahab et al in Katsina (23%),26Puepet et al in Jos, Nigeria (21.4%)27 and Adediran et al in Abuja (22.3%).28 This was however higher than the prevalence found by Desalu et al in Ilorin (9.8%),29 and Iloh et al in Umuahia (6.0%).30

Most of the study participants were in the 40-49 years age group. This shows that obesity is commoner in middle age agreeing with other studies done in Nigeria by Amole et al,31Adediran et al,28 and Wahab et al.26This is not surprising because people in this age group are more likely to be employed and have more disposable income. This may lead to consumption of excessive unsuitable food and when combined with sedentary life style, makes obesity inevitable. There were more females than males in the study (76.5% vs. 23.5%) i.e. ratio 3:1. Similar findings were noted in the WHO MONICA project where women had significantly higher prevalence rates of obesity than men.2 Other studies in Nigeria by Desalu et al,29Adediran et al,28 and Wahab et al,26 also had similar findings. However a study done in Jos by Puepet showed that the female to male ratio was 1:3.27

Most of the study participants had tertiary education (64%). This was similar to a study done by Ojofeitimi et al who found out that in spite of the higher education of their subjects in a University community in South Western Nigeria, many of the respondents believed that being obese gave respect and that it was a sign of good living.32 This was however different from Adediran’s study who found that participants with little or no formal education had the highest prevalence of obesity compared to those with formal education (38.6% versus 16.9%).28

About 83.8% of the patients were married while only 10% were single. This is similar to findings reported by Wahab et al in Katsina,26 and Siminnialayi et al in Port-Harcourt.33This result is reflective of the fact that those in their middle ages are more likely to be married. In contrast, Adediran et al also showed that a larger proportion of singles were obese than married (25.0% versus 21.5%) but this difference was not statistically significant.28This is probably because a large proportion of the sample population (79.0%) were married. The effects of marriage and divorce on weight may be due to the influence of marriage on inducement to eat (e.g. shared meals) or on motivation for weight loss.

A large percentage of the patients were either professionals (54.4%) or self-employed (41.1%). This is also reflective of the age distribution of the patients with this age group likely to be working, and also more likely to have access to high energy foods. This group was also likely to be sedentary and not having time to exercise, as had been reported in other studies from other parts of Nigeria.34,35

Most of the participants were class II obese (45.6%). A study done among male undergraduates at the University of Lagos revealed that most of the population studied fell within obese class I category.36This study was also comparable to studies done by Iloh et al in Umuahia (86.1%)30 and Adediran et al in Abuja (mean weight of 27.35+ 4.03).28 In contrast, the higher percentage of class II obesity in this study might be attributed to the fact that our study excluded the overweight and only focused on those whose BMI were more than 30 Kg/m2. The other studies included both overweight and obese patients.

All the study participants had very high abdominal circumference. The males had a mean abdominal circumference of 119.3±17.3cm while that of the females was 111.2±8.9cm. These findings were much higher compared to studies done by Amole (male=84.1±12.7 and females=90±14.6),31 and Adediran et al (male=83.75±11.34 and female=86.64±12.44).28This might be because most of the study participants in the index study were in class II obesity. It is important to note that central obesity is not only a risk factor for cardiovascular disease worldwide but a cause of increased mortality in both men and women.2

The mean URICA score for the participants indicated that most were in contemplation. This is comparable to a study done by Larforge et al in the U.S.A. who found that 41% of their participants were in pre-contemplation,18.5% were in contemplation, 24.5% in action and 41% in maintenance.37 Another study by Hawkins among African-American women showed that most of them were in pre-contemplation.38 These values are consistent with Prochaska’s theory which states that most people who want to change their behaviour are either pre-contemplators or contemplators.23 This is in contrast to studies by Wee et al where most of their study participants were in advanced stages of weight loss.39 This might be because these two studies did not use the URICA scale to measure motivation. The stage of change is more useful than the URICA score in clinical practice because it can determine which intervention the clinician should provide. For example, during pre-contemplation and contemplation, patients are more likely to respond to a cognitive approach, such as discussing the benefits of habit change, possibly supported by written information. In the pre-contemplation stage, the patient perceives that the disadvantages of changing outweigh the benefits, whereas this pattern is reversed in the action stage.

The study did not find any statistically significant relationships between socio-demographic variables and stage of readiness to change. Ghannadiasl et al found that Iranian women with higher waist hip ratio were more likely to have higher readiness to change scores and tended to be in higher action categories.40

It was also interesting that self-perception of motivation to change and self-assessment of efficacy were not significantly related to actual stage of change as measured by the URICA score. This would imply that primary care physicians should be careful since patients’ self-perception and self-assessment of readiness to change might not correlate with an objective assessment of readiness to change.

LIMITATION: The study population was not diverse, since only literate obese patients were studied. These results should not be generalised to a population with a significant proportion of non-literate members. The URICA score was also not independently validated for a Nigerian population.

6. Conclusion

This study has shown that the prevalence of obesity among literate patients attending the General Outpatient department of Bingham University Teaching Hospital Jos is 17.43%. Most (73.5%) of the literate obese patients were found to be in the contemplation stage. This has implications for physicians offering lifestyle behaviour change interventions in primary care.

Acknowledgements

The authors wish to declare that they have no financial or personal relationship(s) which may have inappropriately influenced them in writing this paper.

The authors appreciate the support of the Management, OPD staff and patients of Bingham University Teaching Hospital Jos.


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