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.
Hip problems. Problems with the hip joint can be identified as back pain or hip pain, when the source is actually the ball and socket joint where the leg meets the pelvic bones. Cancer. Back pain as an initial symptom of cancer is not likely, but a cancer that presses on the spine â or has spread to the bones of the spine â will cause pain.