In a cross-sectional retrospective study of 2087 Ghanaian school girls in various educational institutions in the Kumasi district, Ashanti region, Ghana, the mean menarcheal age was found to be 13.98 +/- 1.42 years. Differences in the menarcheal age of the girls was found to be significantly correlated to social class, parents ethnic origin, educational institution and home living area (P = 0.0...

this study is a three-year retrospective clinical study (1971-1974) and is based on data recorded in the clinical charts of 2000 patient referred to soraya hospital (clinic of ob/gyn) for different reasons. in addition the physician in charge of the clinic has been personally interested in this study and has meticuloueticulously questioned the patients about the age, of menopause and other rela...

OBJECTIVE To analyse the effect of cards and of vitamin A supplementation on coverage for National Immunisation Days (NIDs). DESIGN A retrospective ecological study. SETTING A countrywide NIDs coverage before and after introduction of the NIDs cards and vitamin A supplementation in all districts of Uganda. METHODS NIDs for polio eradication commenced in Uganda in 1996. Two rounds, one mon...

BACKGROUND We sought to clarify the association between the personal utilization of general health checkups (GHCs) and medical expenditures (MEs) in a middle-aged Japanese population. METHODS A retrospective cohort study was conducted. Subjects were 33,417 residents (15,819 males and 17,598 females) aged 48 years or older in 2010 who were invited to undergo GHCs every year. Official records o...

Retrospective studies have always taken for granted that matching should be done on factors which affect the incidence of the disease. Worcester stated that when that "when a disease group is being compared with another group, matching is usually done on variables known to be related to the disease rather than on variables related to the outcome." Miettinen et al. however disagrees. They bel...

A modified critical-incident analysis technique was used in a retrospective examination of the characteristics of human error and equipment failure in anesthetic practice. The objective was to uncover patterns of frequently occurring incidents that are in need of careful prospective investigation. Forty-seven interviews were conducted with staff and resident anesthesiologists at one urban teach...

purpose: to determine the indications for and surgical techniques of corneal transplantation at labbafinejad medical center (lmc) from 2004 to 2007. methods: in this descriptive study, records of 756 patients who had undergone corneal transplantation from october 2004 to october 2007 were reviewed. results: overall, 504 male (64.9%) and 272 female (35.1%) subjects with mean age of 41.29±21.25 (...

background and objectives: there are a few studies on histopathologic type of oral lesions especially from iran. the aim of this study was to survey the oral lesions in babol, northern iran. methods: the histopathology records were retrospectively reviewed for all lesions of oral cavity and jaws, during the years 1990 to 2009. the data were collected from the archive of pathology and analyzed ...

Background: Malignant melanoma is the leading cause of death among skin cancers in western countries. However, the incidence, histologic subtypes, and tumor behaviors are quite different in Asians and western populations. Objective: This study was designed to survey the clinicopathological aspects of malignant melanoma among Khouzestan people. Patients and Methods: In a retrospective stud...

A retrospective study of breastfeeding patterns in a socioeconomically homogeneous sample of 2520 mothers visiting Mexican outpatient clinics was conducted. During May and June 1975, mothers attending the outpatient departments of 4 clinics of the Mexican Social Security Institute (IMSS) were interviewed. The mothers ranged in age from 15 to 48 years. In 56.1% of the cases, the child's fathe...