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. 2017 Mar 27;18:67. doi: 10.1186/s12891-017-1424-5

Table 4.

Episode lengths in relation to pain site

Study year 1 (2011–2012) (N a = 148) Study year 2 (2012–2013) (N a = 248) Study year 3 (2013–2014) (N a = 223)
n % [CI] Episode length (median, IQR) Episode length (mean, SD) n % [CI] Episode length (median, IQR) Episode length (mean, SD) n % [CI] Episode length (median, IQR) Episode length (mean, SD)
Cervical pain 41 27.7% [21.0–35.5%] 3 (2–7) 4.9 (3.9) 63 25.4% [20.3–31.2%] 3 (1–6) 4.3 (3.6) 50 22.4% [17.4–28.4%] 2 (1–7) 4.7 (4.7)
Thoracic pain 25 16.9% [11.6–23.9%] 3 (1–5) 4 (3.4) 49 19.8% [15.2–25.2%] 2 (1–4) 3.7 (3.6) 32 14.4% [10.3–19.6%] 2.5 (1–4) 3.5 (3.0)
Lumbopelvic pain 57 38.5% [30.9–46.7%] 3 (2–7) 4.7 (4.5) 107 43.1% [37.1–49.4] 2 (1–6) 4.1 (3.9) 109 48.9% [42.3–55.5%] 3 (2–6) 4.2 (3.8)
Multisite pain 25 16.9% [11.6–23.9%] 3 (1–6) 4.6 (4.5) 29 11.7% [8.2–16.4%] 4 (1–13) 6.7 (5.3) 32 14.3% [10.3–19.6%] 4 (2–13) 6.5 (5)

aNumber of diagnosed spinal pain episodes per study year