Male | Female | |||||
School year (Age, y) | Rural | Metropolitan | All | Rural | Metropolitan | All |
1 (6) | 74.13 ± 28.13 (17, 151) | 80.84 ± 22.92 (63, 1337) | 79.62 ± 24.00 (80, 1488) | 64.59 ± 37.65 (16, 139) | 72.10 ± 21.43 (69, 1440) | 70.91 ± 25.11 (85, 1579) |
2 (7) | 84.92 ± 27.08 (18, 187) | 84.87 ± 22.96 (69, 1406) | 84.88 ± 23.70 (87, 1593) | 71.67 ± 27.51 (18, 174) | 80.56 ± 22.95 (75, 1552) | 78.84 ± 24.00 (93, 1726) |
3 (8) | 87.14 ± 26.94 (19, 178) | 87.70 ± 20.99 (83, 1806) | 87.49 ± 22.42 (102, 1984) | 82.20 ± 32.55 (19, 165) | 83.45 ± 21.20 (88, 1862) | 83.11 ± 23.84 (107, 2027) |
4 (9) | 90.67 ± 29.94 (20, 207) | 86.63 ± 20.21 (78, 1622) | 86.85 ± 22.84 (98, 1829) | 75.93 ± 27.74 (19, 147) | 86.75 ± 20.26 (85, 1761) | 84.12 ± 22.75 (104, 1908) |
5 (10) | 96.22 ± 32.69 (17, 154) | 91.91 ± 21.46 (79, 1634) | 93.14 ± 23.73 (96, 1788) | 90.47 ± 27.08 (17, 138) | 86.70 ± 20.03 (87, 1862) | 87.70 ± 21.50 (104, 2000) |
6 (11) | 99.41 ± 30.67 (16, 131) | 92.71 ± 20.00 (74, 1552) | 93.90 ± 22.21 (90, 1683) | 93.59 ± 27.59 (16, 130) | 92.01 ± 17.66 (81, 1849) | 92.27 ± 19.47 (97, 1979) |
7 (12) | 104.82 ± 28.79 (17, 137) | 93.42 ± 17.91 (69, 1394) | 95.04 ± 21.00 (86, 1531) | 100.22 ± 28.88 (16, 128) | 93.56 ± 18.15 (76, 1793) | 93.47 ± 21.90 (92, 1921) |
1 - 7 (6 - 12) | 90.85 ± 29.95 (124, 1145) | 88.45 ± 21.23 (515, 10751) | 88.82 ± 23.29 (639, 11,896) | 82.37 ± 31.47 (121, 1021) | 85.28 ± 21.18 (561, 12,119) | 84.57 ± 23.64 (682, 13,140) |