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.
Pain in the hip area may also originate from painful infections or other conditions of the skin, such as shingles. Hip pain may also occur because of a problem with the back or spine. Depending upon the cause of hip pain, the pain may occur when walking, running, or engaging in activity. Bursitis of one of the two bursae of the hip (sacs that provide cushioning between bones and tissues) can cause hip pain.
What causes hip pain? Most hip pain has a very simple explanation, for example if youâve overdone it while exercising. The pain is usually caused by strained or inflamed soft tissues such as tendons, and it often clears up within a few days. Long-term hip pain can be caused by specific conditions. Pain caused by a problem in the hip joint can be felt in the groin, down the front of the leg and in the knee. Sometimes knee pain is the only sign of a hip problem. This is called referred pain, and itâs fairly common. Hip pain can also be felt in the buttock (although pain in this area can also be caused by problems with the lower back) or on the outside of the hip.