Fc receptor-like 3 (−169T>C) polymorphism increases the risk of tendinopathy in volleyball athletes: a case control study

Table 3 Analysis of FCRL3 –169 T > C polymorphism frequency with regards to tendon pain and athletes who were away from training due pain in cases compared with controls

FCRL3 -169T>C	Controls n (%)	Tendinopathy n (%)	p-value^a	OR (95% CI)
Tendon pain^b
	(n = 77)	(n = 128)
TT	38 (49.3)	34 (26.6)		1^d
TC	29 (37.7)	65 (50.8)	0.007	2.5 (1.32–4.74)
CC	10 (13.0)	29 (22.6)	0.010	3.24 (1.38–7.62)
TC + CC	39 (50.7)	94 (73.4)	0.002	2.69 (1.49–4.88)
T	105 (68.2)	133 (51.9)	0.002	1^d
C	49 (31.8)	123 (48.1)	0.002	1.98 (1.30–3.01)
Away from training due pain^c
	(n = 33)	(n = 63)
TT	15 (45.5)	15 (23.8)		1^d
TC	15 (45.5)	37 (58.7)	0.09	2.47 (0.97–6.28)
CC	3 (9.0)	11 (17.5)	0.14	3.66 (0.85–15.90)
TC + CC	18 (54.5)	48 (76.2)	0.05	2.67 (1.09–6.54)
T	45 (68.2)	67 (53.2)	0.03	1^d
C	21 (31.8)	59 (46.8)	0.03	1.89 (1.01–3.53)

Differences in sample sizes are due to available data from PCR amplification for each polymorphism
Note: OR odds ratio, CI confidence interval
^aChi-Squared Test or Fisher’s exact test
^bThe analysis for tendon pain was adjusted by age, years of practice in volleyball and gender
^cThe analysis for away from training due pain was adjusted by age, years of practice in volleyball, gender and pain
^dReference group

ISSN: 1471-2350