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.
Sciatica is a fairly common cause of hip pain. Sciatica is pain from the sciatic nerve being compressed or âpinchedâ. Often times this is due to problems in the lower back, such as herniated discs. Sciatic pain runs down from the lower back into the hips and rear. The pain normally ends down in the leg before the knee.