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.
View ArthritisVideos. Hip osteoarthritis, a breakdown of cartilage in the hip joint, can often cause symptoms of back, hip, and leg pain. Often, patients with arthritis in the back will also have it in other joints, and it can be difficult to distinguish which area may in fact be the cause of the patient's pain.In fact, a missed diagnosis of hip osteoarthritis as the source of pain is one of the most common causes of failed low back decompression.ip osteoarthritis, a breakdown of cartilage in the hip joint, can often cause symptoms of back, hip, and leg pain.