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Chiropractic Journal of Australia : CJA March 2013
30 Chiropractic Journal of Australia Volume 43 Number 1 March 2013 approximately eight-hundred x-ray reports was performed to identify patients who had SBO of C1 on their radiographs. Patients whose progress notes were available and contained the standard initial consultation form were included into the experimental (SBO) group. Thirty two subjects meeting the criteria were found, among them 23 females and 9 males. The control group (CRL) of 32 subjects was then was selected to closely match the SBO group. Within the SBO group 29 of the patients had performed cervical imaging only, one cervical and thoracic series, and two subjects underwent full spine radiography. The control group (CRL) was then created by randomly selecting two patients who had undergone full spine x-rays, and one who had both cervical and thoracic spine flms taken. Then from the pool of patients who underwent cervical imaging only, 9 males and 20 females were added. The study was designed to mirror the gender distribution of the SBO group to ensure the results would not be affected if frequency of HA and NP is gender dependent. As both groups were taken from the same population with a sample size above 30, we expected the age distribution of the control group not to differ from that of the SBO group. The regions of radiographic imaging was also matched to the experimental group as a patient who had only undergone a cervical series only is potentially more likely to have HA or NP complaints than a person who underwent full spine x-rays. Basic demographic data and type of the radiographic surveys is contained in Table 1. III. Research Design The research was designed as a retrospective study. All the participants, before receiving treatment in the clinics signed consent for use of their clinical and demographic data for research purposes. The protocol was approved by Macquarie University Ethics Committee. A second investigator blinded to the grouping of each patient analysed the data from the patient fle to determine the presence of neck pain or headaches at the time of initial consultation. Regarded as a positive for HA or NP was every patient who on the initial consultation form had: A. Explicitly named the reason for consultation as HA or NP or both OR B. Circled head or neck area on any of the four pictures (Fig. 1 part A) OR C. Ticked the box in “System Review” section asking for a history of frequent or severe HA (Fig. 1 part B). Patients who had one or more positive responses were classifed as positive. Patients’ complaints were not graded; any positive result for HA or NP was assigned 1’; any negative result was assigned ‘0’. SPINA BIFIDA OCCULTA GLOVER et al Table 1. Characteristics of the participants and types of radiographic examination Group Males Females Age [years] xAVG ±SD X-rays type SBO (N=32) Both groups: N=9; 28.1% Both groups: N=23; 71.9% 43.4 ±19.8 Both groups: C0=29 C0+T0=1 FS=2 CTR (N=32) 41.72±16.2 C:o -- cervical series, T:o -- thoracic, and FS: -- full spine radiographs Part A -- silhouettes on which patients circle localisation of their complaint/pain and area Area considered to be a positive indicated by the dot- ted line polygon on the second from the left Part B -- part of the "System Review" section where patients are asked for HA. Figure 1: Relevant parts of the standard Macquarie University student outpatient clinics initial consult form
CJA December 2012
CJA June 2013