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Table 1 The basic characteristics of participants grouped by gender

From: The association between BMI and health-related physical fitness among Chinese college students: a cross-sectional study

Variables Total MaleFemale
2014 (n = 2639)2015 (n = 2872)2016 (n = 3037)2014 (n = 1105)2015 (n = 1209)2016 (n = 1316)2014 (n = 1534)2015 (n = 1663)2016 (n = 1721)
Age (years) [n(%)]
  ≤ 17281 (10.65)293 (10.20)347 (11.43)113 (10.23)106 (8.77)142 (10.79)168 (10.95)187 (11.24)205 (11.91)
 18911 (34.52)1065 (37.08)1292 (42.54)376 (34.03)449 (37.14)552 (41.95)535 (34.88)616 (37.04)740 (43.00)
 19819 (31.03)894 (31.13)849 (27.96)346 (31.31)394 (32.59)363 (27.58)473 (30.83)500 (30.07)486 (28.24)
 20392 (14.85)394 (13.72)354 (11.66)161 (14.57)170 (14.06)173 (13.15)231 (15.06)224 (13.47)181 (10.52)
 21162 (6.14)149 (5.19)120 (3.95)74 (6.70)60 (4.96)52 (3.95)88 (5.74)89 (5.35)68 (3.95)
  ≥ 2274 (2.80)77 (2.68)75 (2.47)35 (3.17)30 (2.48)34 (2.58)39 (2.54)47 (2.83)41 (2.38)
χ2(df;P)59.266 (10;<0.001)29.592 (10;0.001)37.927 (10;<0.001)
Post-hocP1 = 0.278; P2 < 0.001; P3 < 0.001P1 = 0.204; P2 < 0.001; P3 = 0.020P1 = 0.681; P2 < 0.001; P3 = 0.002
Weight status [n(%)]
 Underweight360 (13.64)400 (13.93)327 (10.77)135 (12.22)136 (11.25)155 (11.78)225 (14.67)264 (15.87)172 (9.99)
 Normal1915 (72.57)2012 (70.06)2097 (69.05)740 (66.97)802 (66.34)809 (61.47)1175 (76.60)1210 (72.76)1288 (74.84)
 Overweight283 (10.72)346 (12.05)453 (14.92)173 (15.66)195 (16.13)241 (18.31)110 (7.17)151 (9.08)212 (12.32)
 Obesity81 (3.07)114 (3.97)160 (5.27)57 (5.16)76 (6.29)111 (8.43)24 (1.56)38 (2.29)49 (2.85)
χ2(df;P)54.420 (6;<0.001)17.038 (6;0.009)54.863 (6;< 0.001)
Post-hocP1 = 0.087; P2 < 0.001; P3 < 0.001P1 = 0.603; P2 = 0.002; P3 = 0.043P1 = 0.045; P2 < 0.001; P3 < 0.001
Physical fitness score
Mean(SD)
0.315 (2.070)0.106 (2.218)− 0.374 (2.261)0.29 (2.11)0.07 (2.28)−0.31 (2.34)0.34 (2.04)0.13 (2.17)−0.42 (2.19)
F (df1;df2;P)74.936 (2;8545;< 0.001)21.955 (2;3627;< 0.001)55.502 (2;4915;< 0.001)
Post-hocP1 < 0.001; P2 < 0.001; P3 < 0.001P1 = 0.024; P2 < 0.001; P3 < 0.001P1 = 0.006; P2 < 0.001; P3 < 0.001
  1. Note: df represents degree of freedom; df1 and df2 represent num df and denom df of F test, respectively. P1 represents the P value for comparison between the year 2014 and 2015; P2 represents the P value for comparison between the year 2014 and 2016; P3 represents the P value for comparison between the year 2015 and 2016