Epidemiology of hip fractures in 2002 in Rabat, Morocco

Abstract

Hip fracture has never been studied before, either in Morocco or in the adjacent countries of the south bank of the Mediterranean Sea. The aim of this study was to investigate the incidence rate of hip fracture in 2002 in Rabat Province, a large area in the northwest of The Kingdom of Morocco, by the use of register information and medical records collected from the five public hospitals of the region. The hip fracture data were restricted to cervical or trochanteric types. There was a total of 150 hip fractures (83 in women and 67 in men) in the over-50-year-old population in the Province of Rabat during 2002. The age-adjusted 1-year cumulative incidence of hip fracture was 52.1/100,000 [95% confidence interval (CI) 40.9-63.3/100,000] in women and 43.7/100,000 (95% CI 33.3-52.2/100,000) in men. The standardized incidence rate against the 1985 US population was 80.7/100,000 (95% CI 78.5-93.0/100,000) for women and 58.5/100,000 (95% CI 47.9-68.1/100,000) for men. The mean (standard deviation) age of patients with a hip fracture was 70.7 (9.4) years for women and 70.4 (10.0) years for men. The overall female-to-male ratio of hip fracture was 1.19 for age-adjusted hip fracture incidence and 1.30 for standardized incidence. A marked increase in incidence rate was found for both men and women with increasing age, becoming exponential after the age of 50 years. The mean age for hip fracture was 70.7 (9.4) years in women and 70.4 (10.0) years in men (P > 0.05). Women had a cervical-to-trochanteric ratio of 0.97 compared to men, at 1.03. The characteristics of hip fractures described in this study suggest that fragility fractures occur in North Africa, although substantially less frequently than in most European, North American and Asian countries but more frequently than sub-Saharan African countries, in agreement with the north-south gradient observed in the epidemiology of osteoporosis. The low incidence of hip fragility fracture rate is most likely the result of reduced longevity in Morocco.

Differences in monthly variation, cause, and place of injury between femoral neck and trochanteric fractures: 6-year survey (2008-2013) in Kyoto prefecture, Japan

“…However, differences in the incidences have been reported related with age (1-6) and geography (7,8). Our previous investigation in the Kyoto prefecture between 2008 and 2010 suggested that the incidence of trochanteric fracture was similar in urban and rural areas whereas the incidence of neck fracture had higher rate in urban areas than in rural areas (9); these results support those previously reported in Norway (10).…”

Hip fractures in the Portuguese archaeological record

“…In modern epidemiological studies, intracapsular fractures are generally more common than extracapsular fractures (Kannus et al, 1996;Michaëlsson et al, 1999;Zhang et al, 2000), but not always (Maghraoui et al, 2005). These two types of hip fracture are usually considered together in aetiological studies (Michaëlsson et al, 1999).…”

Hip fracture incidence in Lebanon: a national registry-based study with reference to standardized rates worldwide

“…Study subjects are often derived from hospital-based case series or limited to urban populations selected exclusively from large cities, particularly the capital cities (Kuwait, Morocco, Oman, Saudi Arabia, and Iran) [11,[42][43][44][45]. Findings from these studies show that crude incidence rates among those aged 50 years and over are lowest in Morocco (52.1 and 43.7 per 100,000 in females and males, respectively) [42] and highest in Kuwait (295/100,000 in females and 200/100,000 in males) [11]. In Saudi Arabia, the incidence rates for individuals older than 40 years of age were 100/100,000 in females and 71/100,000 in males [44], and in Oman 150/100,000 and 130/100,000, respectively [43].…”