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Table 5 Combined analysis of the COL1A1 and COL1A2 polymorphisms and the risk of developing ACL injury

From: Influence of type I collagen polymorphisms and risk of anterior cruciate ligament rupture in athletes: a case-control study

COL1A1 and COL1A2

Control (N = 192)

Injured Group (N = 146)

P – valuea

Adjusted OR (CI 95%)b

Non-contact ACL (N = 67)

P – valuea

Adjusted OR (CI 95%)c

rs1107946 + (rs412777 / rs4252 / rs2621215)e

N (%)

  

N (%)

  

WT / 3 WT

13 (7.0)

16 (11.0)

0.32

1d

8 (11.9)

0.34

1d

WT / 1 VAR

58 (31.2)

37 (25.5)

0.39 (0.15–1.02)

16 (23.9)

0.43 (0.13–1.42)

WT / 2 VAR

24 (12.9)

26 (17.9)

0.58 (0.21–1.65)

16 (23.9)

0.91 (0.26–3.17)

WT / 3 VAR

12 (6.4)

13 (9.0)

0.65 (0.20–2.15)

5 (7.5)

0.62 (0.13–2.94)

VAR / 3 WT

13 (7.0)

8 (5.5)

0.25 (0.07–0.96)

4 (6.0)

0.33 (0.06–1.74)

VAR / 1 VAR

38 (20.4)

20 (13.8)

0.41 (0.14–1.15)

7 (10.4)

0.35 (0.09–1.40)

VAR / 2 VAR

20 (10.8)

21 (14.5)

0.79 (0.26–2.35)

8 (11.9)

0.96 (0.24–3.90)

VAR / 3 VAR

8 (4.3)

4 (2.8)

0.45 (0.10–2.13)

3 (4.5)

1.46 (0.25–8.46)

  1. OR is the Odds ratio; CI is the confidence interval
  2. aP-value ≤0.05 was obtained through the Chi-squared Test (Pearson P-value)
  3. bOR adjusted by age, sport modality, training location and years of training
  4. cOR adjusted by age, sport modality, and training location
  5. dReference value
  6. e Successful combined genotypes were 331 samples