Time-use and environmental determinants of dropout from organized youth football and tennis

Deelen, Ineke; Ettema, Dick; Kamphuis, Carlijn B. M.

doi:10.1186/s12889-018-5919-2

BMC Public Health

Table 4 Binary logistic regression on drop out (yes/no) in sports – TENNIS (N = 1195)

From: Time-use and environmental determinants of dropout from organized youth football and tennis

Outcome = Dropout vs Member	Model 1 (socio-demographic factors)			Model 2 (model 1 + time use factors)			Model 3 (model 2 + environmental factors)			Model 4 (model 3 + motivational orientation)
Outcome = Dropout vs Member	Exp (B)	95% CI	P	Exp (B)	95% CI	P	Exp (B)	95%	P	Exp (B)	95% CI	P
Constant	1.71		0.005	0.58		0.111	0.67		0.257	0.63		0.208
Control variables
Age (17–21 = ref)
13–16	1.14	0.83–1.56	0.424	0.96	0.64–1.45	0.852	0.96	0.64–1.45	0.853	0.95	0.63–1.43	0.808
Sex (male = ref)	0.70	0.55–0.89	0.003	0.74	0.54–1.00	0.049	0.75	0.55–1.01	0.061	0.74	0.55–1.02	0.063
Current education (high = ref)			0.165			0.039			0.107			0.093
No	0.54	0.27–1.08	0.080	0.91	0.37–2.23	0.837	0.86	0.35–2.11	0.74	0.83	0.34–2.04	0.682
Low	1.09	0.75–1.60	0.640	1.42	0.86–2.32	0.169	1.28	0.78–2.11	0.336	1.21	0.73–2.00	0.464
Middle	1.19	0.83–1.72	0.343	2.00	1.21–3.31	0.007	1.78	1.07–2.96	0.026	1.77	1.06–2.94	0.028
Played in selection (team) (no = ref)	0.45	0.35–0.58	0.000	0.53	0.38–0.74	0	0.57	0.40–0.79	0.001	0.59	0.42–0.82	0.002
Time use factors
Time use indicators at this moment (average hrs per week)
Tennis/football outside sports club				0.27	0.22–0.34	0	0.27	0.22–0.34	0	0.28	0.22–0.34	0
Other sports				1.22	1.15–1.29	0	1.22	1.15–1.29	0	1.22	1.15–1.29	0
Other (fixed) hobbies				1.03	0.97–1.10	0.375	1.03	0.97–1.10	0.326	1.04	0.97–1.11	0.277
School/study and homework				1.00	0.99–1.01	0.756	1.00	0.99–1.01	0.726	1.00	0.99–1.01	0.84
(Part-time) job				1.02	1.00–1.03	0.135	1.02	1.00–1.04	0.108	1.02	1.00–1.04	0.12
Social activities (no of times)				1.16	1.04–1.31	0.011	1.16	1.03–1.31	0.013	1.17	1.04–1.32	0.01
Time spent on side activities at sports club past season (hrs)				0.97	0.94–0.99	0.014	0.97	0.94–1.00	0.019	0.97	0.94–1.00	0.028
Changes in job/school situation since past season
Got job/increased work hrs (no = ref)				0.45	0.29–0.72	0.001	0.47	0.29–0.74	0.001	0.48	0.30–0.76	0.002
Changed schools/further educ. (no = ref)				2.96	2.04–4.28	0	2.97	2.04–4.31	0	2.92	2.01–4.26	0
Environmental factors
Travel distance to sports club (km)							0.97	0.94–0.99	0.007	0.96	0.94–0.99	0.006
Neighbourhood density (strong – extremely urbanized = ref)									0.684			0.72
Rural							0.94	0.63–1.40	0.761	0.98	0.65–1.46	0.901
Hardly – moderately urbanized							1.10	0.77–1.57	0.599	1.12	0.78–1.60	0.544
Motivational factors
Task orientation										0.84	0.71–0.99	0.032
Ego orientation										0.90	0.77–1.05	0.166
-2 Log likelihood	1595.78			1082.24			1068.95			1062.54
Cox&Snell R²	0.05			8.49			0.39			0.93
Nagelkerke R²	0.073			0.51			0.52			0.52

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