Table 4 KOP score in secondary school students

224

127.4 (125.6–129.2)

135.7 (134.1–137.3)

8.3 (6.2–10.3)

<  0.001

0.27

0.55

79

128.78 (125.21–132.36)

136.19 (133.68–138.71)

7.41 (3.46–11.35)

<  0.001

145

126.67 (14.66–128.67)

135.42 (133.07–137.77)

8.75 (6.43–11.07)

<  0.001

0.12

0.69

63

125.16 (122.69–127.63)

134.05 (130.47–137.63)

8.89 (5.18–12.59)

<  0.001

161

128.30 (125.98–130.61)

136.34 (134.33–138.34)

8.04 (5.59–10.48)

<  0.001

0.43

0.54

80

127.48 (124.31–130.64)

137.84 (135.24–140.44)

10.36 (6.83–13.90)

<  0.001

112

126.30 (123.83–128.76)

133.82 (131.11–136.53)

7.53 (4.49–10.57)

<  0.001

32

131.10 (126.47–135.91)

136.88 (132.71–141.04)

5.69 (2.01–9.36)

0.004

0.45

0.84

49

126.12 (122.70–129.54)

133.96 (131.02–136.90)

7.84 (4.36–11.32)

<  0.001

175

127.78 (125.69–129.86)

136.18 (134.08–138.27)

8.40 (5.98–10.82)

<  0.001

0.37

0.26

123

128.15 (125.94–130.37)

135.41 (132.79–138.02)

7.25 (4.56–9.94)

<  0.001

101

126.52 (123.59–129.44)

136.04 (133.78–138.30)

9.52 (6.40–12.65)

<  0.001

0.56

0.36

185

127.17 (125.18–129.17)

135.89 (133.98–137.81)

8.72 (6.41–11.03)

<  0.001

39

128.56 (124.52–132.61)

134.74 (130.31–139.18)

6.18 (2.11–10.25)

0.004