Logo of bmcmudisBioMed Centralsearchsubmit a manuscriptregisterthis articleBMC Musculoskeletal Disorders
PMC full text:

Table 3

Length of episodes

Length of episode (weeks)Study year 1 (2011–2012) (n a = 550)Study year 2 (2012–2013) (n a = 746)Study year 3 (2013–2014) (n a = 660)
159.1%32556.6%42251.2%338
213.1%7214.7%11017.9%118
37.4%416.7%507.3%48
44.4%244.9%376.2%41
53.6%203.1%232.9%19
62.2%121.5%113.5%23
72.2%122.1%161.5%10
81.1%61.5%110.3%2
91.1%60.7%50.4%3
101.1%60.9%71.2%8
111.1%60.3%20.5%3
120.7%40.4%30.6%4
≥132.9%166.6%496.5%43
100%550100%746100%660
Median # weeks (IQR)1 (1–3)1 (1–3)1 (1–3)
Mean # weeks (SD)2.6 (2.9)2.9 (3.3)3 (3.3)

a = Number of episodes per school year

External link. Please review our privacy policy.