Table 5

Multivariable linear regressions with ABQ-score as the dependent variable

 All athletes (N=210) Endurance Technical Team sports Both sexes (N=210) Boys (N=135) Girls (N=75) (N=57) (N=47) (N=106) P value B (95% CI) P value B (95% CI) P value B (95% CI) P value B (95% CI) P value B (95% CI) P value B (95% CI) Illnesses <0.001 0.21 (0.10 to 0.32) 0.27 0.11 (−0.09 to 0.31) 0.042 0.19 (0.01 to 0.37) 0.033 0.20 (0.02 to 0.38) <0.001 0.19 (−0.10 to 0.47) 0.017 0.26 (0.05 to 0.48) Acute injuries 0.007 0.16 (0.04 to 0.27) 0.001 0.24 (0.10 to 0.38) 0.60 0.06 (−0.16 to 0.28) 0.41 −0.50 (−1.73 to 0.72) 0.005 0.50 (0.16 to 0.85) 0.11 0.1 (−0.02 to 0.23) Overuse injuries 0.015 0.10 (0.02 to 0.18) 0.29 0.07 (−0.06 to 0.19) 0.22 0.08 (−0.05 to 0.21) 0.30 −0.30 (−0.87 to 0.28) 0.65 0.04 (−0.15 to 0.24) 0.015 0.12 (0.02 to 0.22) QBPNS-score (1-5) 0.011 −0.01 (−0.02 to 0.00) 0.016 −0.01 (−0.02 to 0.00) 0.31 −0.01 (−0.04 to 0.01) 0.50 −0.01 (−0.02 to 0.03) 0.16 −0.02 (−0.05 to 0.01) 0.016 −0.01 (−0.03 to 0.00) Influence on training week Personal 0.14 −0.08 (−0.19 to 0.03) 0.17 −0.08 (−0.2 to 0.04) 0.44 −0.09 (−0.33 to 0.15) 0.42 −0.08 (−0.39 to 0.16) 0.48 0.12 (−0.22 to 0.45) 0.36 −0.06 (−0.19 to 0.07) Coach <0.001 −0.33 (−0.35 to –0.15) <0.001 −0.33 (−0.45 to –0.22) 0.09 −0.17 (−0.37 to 0.03) <0.001 −0.33 (−0.69 to –0.25) 0.01 −0.37 (−0.64 to –0.09) 0.011 −0.17 (−0.30 to –0.04) Social environment Sports 0.19 −0.06 (−0.20 to 0.04) 0.36 −0.06 (−0.2 to 0.08) 0.87 −0.02 (−0.27 to 0.23) 0.011 −0.06 (−0.8 to –0.11) 0.84 0.03 (−0.24 to 0.29) 0.13 −0.15 (−0.35 to 0.05) School 0.10 0.02 (−0.19 to 0.02) 0.76 0.02 (−0.1 to 0.14) 0.15 −0.15 (−0.36 to 0.06) 0.031 0.02 (−0.45 to –0.02) <0.001 −0.44 (−0.66 to –0.22) 0.19 0.11 (−0.05 to 0.27) Goal achievement school 0.77 0.01 (−0.08 to 0.11) 0.84 0.01 (−0.09 to 0.11) 0.51 −0.08 (−0.31 to 0.16) 0.14 0.01 (−0.34 to 0.05) 0.54 0.08 (−0.19 to 0.35) 0.21 0.08 (−0.04 to 0.20) Travel time to school 0.54 0.01 (0.00 to 0.01) 0.018 0.01 (0.00 to 0.01) 0.62 0.00 (−0.01 to 0.01) 0.61 0.01 (−0.02 to 0.01) 0.16 0.01 (0.00 to 0.01) 0.87 0.00 (−0.01 to 0.01) Living away from home 1 year 0.84 0.29 (−0.39 to 0.48) 0.22 0.29 (−0.17 to 0.75) 0.60 −0.26 (−1.26 to 0.73) 0.44 0.29 (−1.68 to 0.75) 0.38 −0.34 (−1.11 to 0.43) 0.012 0.88 (0.20 to 1.55) 2 years 0.27 0.12 (−0.33 to 1.19) 0.74 0.12 (−0.61 to 0.85) 0.37 0.43 (−0.53 to 1.40) 0.90 0.12 (−1.58 to 1.79) 0.028 0.91 (0.11 to 1.71) 0.62 −0.25 (−1.25 to 0.75) 3 years 0.40 −0.17 (−0.91 to 0.37) 0.55 −0.17 (−0.75 to 0.40) Omit. 0.62 −0.17 (−0.93 to 1.55) Omit. 0.56 −0.23 (−1.02 to 0.56) Adjusted R2 for model 0.27 0.36 0.13 0.41 0.39 0.29
• Some variables are omitted due to collinearity. Values for ‘All health problems’, ‘Illnesses’, ‘Acute injuries’ and ‘Overuse injuries’ are yearly averages per athlete and given in thousands.

• ABQ, Athlete Burnout Questionnaire; B, regression coefficient; QBPNS, Questionnaire of Basic Psychological Need Support.