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Table 4 Results of the mixed effects regression analyses for race time in the ‘Jungfrau Marathon’

From: Increase in participation but decrease in performance in age group mountain marathoners in the ‘Jungfrau Marathon’: a Swiss phenomenon?

Parameter	Estimate	Standard error	df	t	p value
18–24
Constant term	−1468.67	656.37	984.51	−2.23	0.025
Female sex	20.32	3.67	755.22	5.53	<0.0001
Calendar year	0.88	0.32	984.55	2.70	0.007
25–29
Constant term	−1627.79	401.69	2542.02	−4.05	<0.0001
Female sex	18.26	2.17	2073.43	8.38	<0.0001
Calendar year	0.95	0.20	2542.07	4.79	<0.0001
30–34
Constant term	−1764.41	270.53	5350.93	−6.52	<0.0001
Female sex	20.86	1.57	4117.81	13.21	<0.0001
Calendar year	1.02	0.13	5350.98	7.61	<0.0001
35–39
Constant term	−1880.69	222.38	8062.32	−8.45	<0.0001
Female sex	19.38	1.35	5718.30	14.33	<0.0001
Calendar year	1.08	0.11	8062.38	9.79	<0.0001
40–44
Constant term	−2350.94	183.75	11,098.30	−12.79	<0.0001
Female sex	20.53	1.06	7616.11	19.20	<0.0001
Calendar year	1.32	0.09	11,098.40	14.45	<0.0001
45–49
Constant term	−2008.87	181.75	10,676.10	−11.05	<0.0001
Female sex	23.67	1.07	7201.81	21.96	<0.0001
Calendar year	1.15	0.09	10,676.17	12.76	<0.0001
54–54
Constant term	−2461.63	202.63	8035.83	−12.14	<0.0001
Female sex	22.71	1.33	5336.54	16.96	<0.0001
Calendar year	1.38	0.10	8035.96	13.72	<0.0001
55–59
Constant term	−3145.87	273.07	4263.96	−11.52	<0.0001
Female sex	21.21	1.85	2894.57	11.46	<0.0001
Calendar year	1.73	0.13	4264.08	12.72	<0.0001
60–64
Constant term	−3685.21	374.10	2154.69	−9.85	<0.0001
Female sex	17.95	2.92	1363.42	6.14	<0.0001
Calendar year	2.00	0.18	2154.72	10.75	<0.0001
65–69
Constant term	−3880.01	616.55	794.88	−6.29	<0.0001
Female sex	18.38	5.31	493.15	3.46	0.001
Calendar year	2.10	0.30	794.89	6.85	<0.0001
70–74
Constant term	−2739.43	1248.46	156.09	−2.19	0.030
Female sex	6.60	8.59	100.46	0.76	0.444
Calendar year	1.54	0.62	156.09	2.48	0.014
75–79
Constant term	3023.71	4920.13	11.05	0.61	0.551
Calendar year	−1.32	2.44	11.06	−0.54	0.598

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