Session Information
Session Type: ACR Poster Session C
Session Time: 9:00AM-11:00AM
Background/Purpose: The prevalence and burden of chronic low back pain (CLBP)
were ill defined in Portugal. The aim of this study was to determine,
the prevalence of active CLBP (ACLBP) in the adult Portuguese population; to
compare the ACLBP population with the population without ACLBP, and to explore
factors associated with ACLBP.
Methods: This study was conducted under the scope of EpiReumaPt, a Portuguese population-based study including 10,661 subjects, representative of
the Portuguese population. Trained interviewers undertook structured
face-to-face questionnaires in participant’s households that included socio-demographic,
socio-economic information and medical history, as well as information on
functional ability, quality of life and healthcare resources consumption. ACLBP was self-reported and considered if
present on the day of the interview and for ³90 days. Prevalence
estimates were calculated. Differences in quality of life, functional ability
and healthcare resources consumption between subjects with and without ACLBP were
evaluated. Factors associated with ACLBP were identified through logistic
regression. All analyses were adjusted for possible confounders.
Results: The prevalence of ACLBP was 10.4% (95%CI 9.6%; 11.9%). The mean age was 58.9 (SD
17.2) years old and 68.7% were overweight or obese. ACLBP was significantly
more prevalent among women (14.1% vs 6.3% in men).
After adjustment, ACLBP subjects were more likely to
have anxiety symptoms (OR=2.66, p<0.001), to
retire early due to the disease (OR=1.72; p=0.006), and to be absent from work
due to the disease (OR=1.86; p<0.001). The presence of a self-reported rheumatic
musculoskeletal disease (RMD), anxiety symptoms, female gender, older age, higher
education level and higher number of self-reported comorbidities were
significantly associated with the presence of ACLBP, taking potential
confounders into account (BMI, NUTS II, present alcohol intake and depressive symptoms).
In turn, physical exercise was inversely associated with ACLBP (table 1).
Conclusion:
ACLBP
is highly prevalent in the Portuguese population and is associated with
disability and with a high consumption of healthcare resources. Female gender, older
age, anxiety symptoms, educational level, the presence of other RMD and the
number of comorbidities were independently associated with the presence of ACLBP.
These factors should be taken into account when developing strategies to
prevent the occurrence of ACLPB.
Table 1: Factors associated with active CLBP
|
Socio-demographic characteristics
|
OR
|
95% CI
|
p value
|
|
Gender (female) |
1.34
|
1.07; 1.66
|
0.009
|
|
Age group |
|
|
|
|
26-35 y.o. vs 18-25 y.o.
|
2.19 |
1.18; 4.07 |
0.013
|
|
36-45 y.o. vs 18-25 y.o.
|
2.90 |
1.63; 5.14 |
<0.001
|
|
46-55 y.o. vs 18-25 y.o
|
3.04 |
1.70; 5.47 |
<0.001
|
|
56-65 y.o. vs 18-25 y.o.
|
3.04 |
1.64; 5.66 |
<0.001
|
|
66-75 y.o. vs 18-25 y.o.
|
4.41 |
2.25; 8.64 |
<0.001
|
|
76-85 y.o. vs 18-25 y.o.
|
3.39 |
1.75; 6.57 |
<0.001
|
|
>86 y.o. vs 18-25 y.o
|
6.92 |
3.19; 15.02 |
<0.001
|
|
BMI (kg/m2)
|
|
|
|
|
Normal vs underweight Overweight vs underweight Obese vs underweight
Education level 10-12 years vs >12 years 5-9 years vs >12 years 0-4 years vs >12 years |
1.10 1.28 1.43
2.04 1.58 1.75
|
0.40; 3.02 0.47; 3.53 0.52; 3.95
1.29; 3.21 0.99; 2.54 1.02; 2.99
|
0.848 0.629 0.494
0.002 0.057 0.042
|
|
NUTS II Centro vs Norte Lisboa vs Norte Alentejo vs Norte Algarve vs Norte A�ores vs Norte Madeira vs Norte |
0.87 0.81 0.86 0.67 0.97 1.17
|
0.66; 1.15 0.59; 1.10 0.59; 1.23 0.40; 1.11 0.71; 1.32 0.85; 1.62
|
0.331 0.182 0.404 0.116 0.828 0.336
|
|
Number of Comorbidities (0-15) |
1.11
|
1.05; 1.18
|
<0.001
|
|
Present alcohol intake (yes/no)
|
0.80
|
0.62; 1.02
|
0.068
|
|
Physical exercise (yes/no)
|
0.78
|
0.62; 0.98
|
0.030
|
|
Anxiety symptoms (yes/no) Depressive symptoms (yes/no)
|
2.47 1.39
|
1.88; 3.23 0.93; 2.07
|
<0.001 0.109
|
|
Self-report of any RMD (yes/no)
|
2.82
|
2.17; 3.69
|
<0.001
|
RMD-Rheumatic and musculoskeletal diseases; y.o. – years old; vs – versus; NUTS
II – Nomenclature of Territorial Units for Statistics
(North, Centre, Alentejo, Algarve, Lisbon, Madeira
and the Azores)
Adjusted
p-values<0.05.
To cite this abstract in AMA style:
Gouveia N, Rodrigues AM, Eusebio M, Machado P, Ramiro S, Canhao H, Branco JC. Prevalence and Social Burden of Active Chronic Low Back Pain in the Adult Portuguese Population – Results from a National Survey [abstract]. Arthritis Rheumatol. 2015; 67 (suppl 10). https://acrabstracts.org/abstract/prevalence-and-social-burden-of-active-chronic-low-back-pain-in-the-adult-portuguese-population-results-from-a-national-survey/. Accessed .« Back to 2015 ACR/ARHP Annual Meeting
ACR Meeting Abstracts - https://acrabstracts.org/abstract/prevalence-and-social-burden-of-active-chronic-low-back-pain-in-the-adult-portuguese-population-results-from-a-national-survey/