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.
Numerous conditions can cause bilateral hip pain in women. Hip pain can be caused by hip joint structures, along with muscles, tendons and other tissues that act on or stabilize the hip joint. Some hip-related conditions occur on one side of the hip, while other conditions occur on both sides. Pain in both hips is called bilateral hip pain, and bilateral hip pain can affect both men and women.