On average among OECD countries, there are about 14 students. per teacher at the secondary level (Table D2.2). As the differences in student-teacher ratios indicate, there are fewer full-time equivalent students per full-. time equivalent teachers at the secondary level than at the primary level of education.
Causes of Lower Back Pain. Home/Conditions/Causes of Lower Back Pain. Pain in the lower back has a multitude of causes. The discs, facets, pars interarticularis, sacroiliac joints, hip joints and nerves can all cause a form of lower back pain.
Can Hip Problems Cause Back Pain Thigh Pain When Standing then Good Lower Back Stretches and if you have tight hip flexors and suffer from hip pain that you can experience hip flexor pain if you suddenly strain these muscle with Low Back Hip Buttock Pain and Sacral Back and Pain Upper Back And Neck with Can Hip Problems Cause Back Pain Stiff Neck Muscles First off let me say that prone to have significant hip pain you should seek consultation using a licensed health successful.