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. 2020 Jul 9;19:102. doi: 10.1186/s12904-020-00606-0

Table 2.

Means, standard deviations, floor and ceiling percentages, skewness, kurtosis, and I-T correlation of the Japanese version of the Barriers Questionnaire-II (total sample)

No Items Mean(SD) Floor (%) Celling (%) Skewness Kurtosis I-Ta
correlation
1 Fatalism 1 0.97 (0.94) 38.33 1.67 0.74 0.22 0.27**
2 Harmful Effects: Addiction 1 2.81 (1.42) 7.50 10.00 − 0.43 − 0.66 0.48**
3 Physiological Effects: SE1 (Drowsiness) 2.78 (1.36) 8.33 7.50 −0.49 −0.45 0.32**
4 Harmful Effects: Immune system 1 2.23 (1.51) 21.67 4.17 −0.20 −1.11 0.69**
5 Physiological Effects: SE2 (Confusion) 2.23 (1.46) 19.17 4.17 −0.17 − 0.97 0.71**
6 Physiological Effects: Tolerance 1 3.21 (1.31) 4.17 12.50 −0.81 0.02 0.61**
7 Physiological Effects: Monitor 1 2.64 (1.52) 11.67 11.67 −0.23 −0.90 0.61**
8 Fatalism 2 1.33 (1.28) 28.33 5.00 1.23 1.47 0.11
9 Harmful Effects: Addiction 2 2.55 (1.46) 14.17 6.67 −0.36 −0.76 0.57**
10 Physiological Effects: SE3 (Nausea) 1.98 (1.32) 15.83 3.33 0.16 −0.67 0.44**
11 Communication: Be good 1 1.32 (1.61) 50.00 6.67 0.92 −0.38 0.41**
12 Communiation: Distract MD 1 0.74 (1.18) 62.50 1.67 1.65 2.11 0.48**
13 Harmful Effects: Immune system 2 2.10 (1.52) 23.33 5.00 −0.04 −1.10 0.69**
14 Physiological Effects: SE4 (Embarrassment) 0.79 (1.10) 56.67 0.83 1.31 1.02 0.48**
15 Physiological Effects: Tolerance 2 2.53 (1.48) 12.50 8.33 −0.19 −0.90 0.59**
16 Physiological Effects: Monitor 2 2.37 (1.47) 15.83 6.67 −0.16 − 0.87 0.68**
17 Physiological Effects: SE5 (Constipation) 1.90 (1.48) 25.00 5.83 0.25 −0.81 0.57**
18 Communication: Distract MD 2 0.86 (1.23) 56.67 2.50 1.51 1.81 0.54**
19 Harmful Effects: Immune system 3 1.85 (1.48) 27.50 4.17 0.20 −0.99 0.70**
20 Physiological Effects: SE6 (general item) 1.52 (1.49) 35.83 5.00 0.64 −0.61 0.43**
21 Physiological Effects: Tolerance 3 1.76 (1.50) 25.83 5.00 0.47 −0.84 0.72**
22 Physiological Effects: Monitor 3 2.36 (1.58) 17.50 10.00 −0.04 −1.06 0.78**
23 Harmful Effects: Addiction 3 2.54 (1.51) 12.50 9.17 −0.19 − 0.94 0.74**
24 Fatalism 3 1.05 (1.15) 35.83 3.33 1.62 3.15 0.14
25 Communication: Be good 2 0.91 (1.27) 57.50 0.83 1.20 0.31 0.53**
26 Communication: Distract MD 3 0.68 (1.04) 60.83 0.83 1.74 3.00 0.51**
27 Communication: Be good 3 1.21 (1.45) 46.67 2.50 1.00 −0.16 0.32**
28 Disease Progression 1 3.30 (1.26) 3.33 18.33 −0.64 0.15 0.25**
29 Disease Progression 2 3.40 (1.18) 1.67 20.00 −0.55 0.11 0.36**
30 Disease Progression 3 3.24 (1.15) 0.83 15.00 −0.32 −0.27 0.37**

aItem-total correlation **P < 0.01