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. 2019 Feb 6;17:27. doi: 10.1186/s12955-019-1097-x

Table 3.

Differences in person mean values of psychosomatic symptoms on non-transformed scales among 15 years old students between four Nordic countries in 1994

Denmark Finland Norway
Set A
It 8
5 cat
Set B
It 8
3 cat
Set C
It 7
5 cat
Set D
It 7
3 cat
Set A
It 8
5 cat
Set B
It 8
3 cat
Set C
It 7
5 cat
Set D
It 7
3 cat
Set A
It 8
5 cat
Set B
It 8
3 cat
Set C
It 7
5 cat
Set D
It 7
3 cat
Finland Girls −0.29
(− 0.35 to − 0.23)
− 0.35
(− 0.43 to − 0.26)
−0.32
(− 0.38 to − 0.26)
−0.37
(− 0.46 to − 0.29)
Boys −0.33
(− 0.40 to − 0.27)
−0.42
(− 0.52 to − 0.34)
− 0.29
(− 0.36 to − 0.23)
−0.37
(− 0.46 to − 0.29)
Norway Girls 0.10
(0.03 to 0.16)
0.06
(− 0.03 to 0.15)
0.06
(0.00 to 0.12)
0.02
(− 0.07 to 0.11)
0.35
(0.28 to 0.41)
0.37
(0.28 to 0.45)
0.34
(0.28 to 0.40)
0.36
(0.27 to 0.44)
Boys 0.14
(0.07 to 0.20)
0.12
(0.03 to 0.20)
0.17
(0.10 to 0.23)
0.15
(0.07 to 0.23)
0.43
(0.36 to 0.50)
0.49
(0.41 to 0.59)
0.42
(0.36 to 0.49)
0.48
(0.40 to 0.58)
Sweden Girls −0.39
(− 0.46 to − 0.32)
− 0.44
(− 0.54 to − 0.35)
− 0.42
(− 0.49 to − 0.36)
−0.47
(− 0.57 to − 0.38)
−0.11
(− 0.18 to − 0.05)
−0.11
(− 0.21 to − 0.02)
−0.13
(− 0.19 to − 0.07)
−0.11
(− 0.21 to − 0.03)
−0.43
(− 0.50 to − 0.36)
−0.45
(− 0.55 to − 0.36)
−0.44
(− 0.51 to − 0.37)
−0.44
(− 0.54 to − 0.35)
Boys −0.37
(− 0.44 to − 0.31)
−0.39
(− 0.49 to − 0.31)
−0.35
(− 0.41 to − 0.29)
−0.38
(− 0.47 to − 0.30)
−0.03
(− 0.10 to 0.04)
0.02
(− 0.07 to 0.12)
−0.05
(− 0.12 to 0.01)
−0.01
(− 0.10 to 0.09)
−0.46
(− 0.53 to − 0.40)
−0.47
(− 0.56 to − 0.38)
−0.47
(− 0.54 to − 0.41)
−0.49
(− 0.58 to − 0.40)

Cohen’s d calculated for four different item sets separately for boys and girls. Confidence interval within parentheses. Calculations based on mean values from the original variable