The high prevalence of symptomatic degenerative lumbar osteoarthritis in Chinese adults: a population-based study.
METHODS
A population-based study.


OBJECTIVE
To study the prevalence and features of symptomatic degenerative lumbar osteoarthritis in adults.


BACKGROUND
Lumbar osteoarthritis adversely affects individuals and is a heavy burden. There are limited data on the prevalence of lumbar osteoarthritis.


METHODS
A representative, multistage sample of adults was collected. Symptomatic degenerative lumbar osteoarthritis was diagnosed by clinical symptoms, physical examinations, and imaging examinations. Personal information was obtained by face-to-face interview. Information included the place of residence, age, sex, income, type of medical insurance, education level, body mass index, habits of smoking and drinking, type of work, working posture, duration of the same working posture during the day, mode of transportation, exposure to vibration, and daily amount of sleep. Crude and adjusted prevalence was calculated. The features of populations were analyzed by multivariable logistic regression in total and subgroup populations.


RESULTS
The study included 3859 adults. The crude and adjusted prevalence of lumbar osteoarthritis was 9.02% and 8.90%, respectively. There was no significant difference in the prevalence of lumbar osteoarthritis between urban, suburban, and rural populations (7.66%, 9.97%, and 9.44%) (P = 0.100). The prevalence of lumbar osteoarthritis was higher in females (10.05%) than in males (9.1%, P = 0.021). The prevalence of lumbar osteoarthritis increased with increasing age. Obese people (body mass index >28 kg/m), those engaged in physical work, those who maintained the same work posture for 1 to 1.9 hours per day, those who were exposed to vibration during daily work, and those who got less than 7 hours of sleep per day had a higher prevalence. These features differed by subgroup.


CONCLUSIONS
This study established epidemiological baseline data for degenerative lumbar osteoarthritis in adults, especially for people younger than 45 years. Lumbar osteoarthritis is epidemic in Beijing and will become a more severe problem in aging society. Different populations have different features that require targeted interventions.
*Department of Spine Surgery, Beijing Jishuitan Hospital, Beijing, China; and †Clinical Epidemiology and Biostatistics Research Office, Beijing Research Institute of Traumatology and Orthopaedics, Beijing, China.
Wei
W
Tian
Yanwei
Y
Lv
Yajun
Y
Liu
Bin
B
Xiao
Xiao
X
Han
D000328:Adult; D000367:Age Factors; D000368:Aged; D044466:Asian People; D002681:China; D003430:Cross-Sectional Studies; D058872:Epidemics; D005260:Female; D006801:Humans; D016015:Logistic Models; D008159:Lumbar Vertebrae / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D016272:Occupational Health / Q000706:statistics & numerical data; D055013:Osteoarthritis, Spine / Q000175:diagnosis / Q000453:epidemiology* / Q000208:ethnology; D011159:Population Surveillance / Q000379:methods; D015995:Prevalence; D012307:Risk Factors; D012424:Rural Population / Q000706:statistics & numerical data; D012737:Sex Factors; D014505:Urban Population / Q000706:statistics & numerical data