PMC full text: | Published online 2017 Mar 27. doi: 10.1186/s12891-017-1424-5
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Table 5
Study year 1 (2011–2012) (N a = 550) | Study year 2 (2012–2013) (N a = 746) | Study year 3 (2013–2014) (N a = 660) | ||||||||||
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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) | |
Trivial pain | 405 | 73.1% [69.2–76.6%] | 1 (1–2) | 1.8 (2.0) | 498 | 66.8% [63.2–70.1%] | 1 (1–2) | 2.1 (2.6) | 437 | 66.2% [62.5–69.7%] | 1 (1–2) | 2.1 (2.4) |
Non-trivial pain | 148 | 26.9% [23.3–30.8%] | 3 (1–7) | 4.7 (3.9) | 248 | 33.2% [29.9–36.7%] | 3 (1–6) | 4.4 (4.0) | 223 | 33.8% [30.3–37.5%] | 3 (2–6) | 4.5 (4.2) |
a = Total number of spinal complaints pr year