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. 2020 Dec 7;11:611872. doi: 10.3389/fpsyg.2020.611872

Table 3A.

Differences in demographic and sports information between clusters (ordinal variables).

Cluster 1: low impact (n = 298) Cluster 2: medium impact (n = 163) Cluster 3: high impact (n = 83) χ2 (gl)f p
Gender C3 C3 C1 C2 26.70 (2) <0.001
Male 59.6% 47.9% 28.0%
Female 40.4% 52.1% 72.0%
Socioeconomic level C3 C3 C1 C2 21.02 (8) 0.003
Very bad 0% 0% 2.4%
Bad 4.0% 4.3% 14.5%
Medium 60.1% 57.7% 55.4%
Good 31.9% 35.0% 27.7%
Very Good 4.0% 3.1% 0%
Academic coursea C2 C3 C1 C1 48.02 (10) <0.001
1° ESO (year 8) 7.1% 5.0% 0%
2° ESO (year 9) 23.8% 13.6% 6.8%
3° ESO (year 10) 23.5% 20.0% 13.5%
4° ESO (year 11) 22.8% 25.7% 29.7%
1° BACHILLER (year 12) 10.0% 25.7% 31.1%
2° BACHILLER (year 13) 12.8% 10.0% 18.9%
Competitive level 4.37 (6) 0.634
Regional 35.2% 39.3% 45.8%
Autonomic 35.2% 29.4% 28.9%
National 22.5% 25.2% 20.5%
International 7.1% 6.1% 4.8%
Lockdown training conditions C3 C1 12.63 (6) 0.045
Not training 10.6% 12.5% 24.7%
Training with important changes 55.0% 57.5% 54.3%
Training with minor changes 27.6% 25.0% 18.5%
Training as always 6.8% 5.0% 2.5%
Satisfaction with club/institution C2 C1 22.87 (8) 0.003
Very unsatisfied 4.7% 3.1% 8.4%
Unsatisfied 3.7% 9.3% 4.8%
Indifferent 19.5% 22.2% 24.1%
Satisfied 32.7% 40.1% 42.2%
Very satisfied 39.4% 25.3% 20.5%

C1, Cluster 1; C2, Cluster 2; C3, Cluster 3. Boldface indicates inter-group significant differences (p < 0.05). Superscripts indicate intra-group significant differences (corrected p < 0.017) using Chi-square test.

a

Academic course was computed removing those participants pursuing tertiary education programs (participants excluded = 49).

f

All inter-group comparisons that included a group with n < 5, were computed using Fishers’ exact test.