Table 4: Responses to the Osteoporosis Knowledge Tests of college aged students from China and the USA.

Question, correct response in italics USA % correct China % correct X2 (1) Eating a diet low in milk products, more likely to get osteoporosis 62.9 47.7 19.12* (2) Being menopausal, more likely to get osteoporosis 44.3 21.1 49.72* (3) Having big bones, less likely to get osteoporosis 25.1 37.8 14.98* (4) Eating a diet high in dark green leafy vegetables, less likely to get osteoporosis 59.5 42.5 23.29* (5) Have a mother or grandmother who has osteoporosis, more likely to get osteoporosis 67.4 24.4 150.03* (6) Being a white woman with fair skin, more likely to get osteoporosis 27.6 12.4 29.28* (7) Having ovaries surgically removed, more likely to get osteoporosis 14.1 11.6 1.16 (8) Taking cortisone for long time, more likely to get osteoporosis 48.4 24.6 49.40* (9) Exercising on a regular basis, less likely to get osteoporosis 74.1 45.0 71.85* (10) Which exercise is best to reduce risk for osteoporosis, walking briskly 23.5 37.4 18.53* (11) Which exercise is best to reduce risk for osteoporosis, bicycling 35.4 40.5 2.23 (12) How many day a week do you need to exercise to strengthen bones, 3 or more days 81.2 48.0 101.92* (13) Least amount of time to exercise on each occasion to strengthen bones, 20–30 minutes 73.4 58.6 19.76* (14) Exercise must be hard enough to make breathing, much faster, but talking is possible 47.4 58.3 1.45 (15) Which exercise is best to reduce chance of getting osteoporosis, jogging or running 74.0 63.5 10.32* (16) Which exercise is best to reduce chance of getting osteoporosis, aerobic dancing 74.4 51.5 25.65* (17) Which is a good source of calcium, cheese 86.5 69.9 32.65* (18) Which is a good source of calcium, canned sardines 17.5 44.99 71.67* (19) Which is a good source of calcium, broccoli 44.7 33.0 11.69* (20) Which is a good source of calcium, yogurt 87.6 60.9 76.20* (21) Which is a good source of calcium, ice cream 59.2 24.7 99.34* (22) What is recommended amount of calcium for an adult, 800 mg or more daily 9.33 10.5 .32 (23) How much milk must adult drink to meet recommended intake, 2 or more glasses daily 45.21 19.85 59.70* (24) Which is best reason for taking calcium supplement, not get enough calcium from diet 72.51 47.68 88.96*

*Significant at .