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.
By Mayo Clinic Staff. Hip pain is a common complaint that can be caused by a wide variety of problems. The precise location of your hip pain can provide valuable clues about the underlying cause. Problems within the hip joint itself tend to result in pain on the inside of your hip or your groin. Hip pain on the outside of your hip, upper thigh or outer buttock is usually caused by problems with muscles, ligaments, tendons and other soft tissues that surround your hip joint. Hip pain can sometimes be caused by diseases and conditions in other areas of your body, such as your lower back.
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.