Table 2 Number of episodes per child by study year
From: Spinal pain in Danish school children – how often and how long? The CHAMPS Study-DK
Number of episodes | Study year 1 (2011–2012) (N a = 296) | Study year 2 (2012–2013) (N a = 393) | Study year 3 (2013–2014) (N a = 336) | |||
|---|---|---|---|---|---|---|
1 | 60.1% | 178 | 59.5% | 234 | 55.7% | 187 |
2 | 18.6% | 55 | 20.6% | 81 | 19.3% | 65 |
3 | 8.8% | 26 | 7.9% | 31 | 11.3% | 38 |
4 | 5.4% | 16 | 4.8% | 19 | 6.2% | 21 |
5 | 4.0% | 12 | 3.3% | 13 | 3.9% | 13 |
6 | 1.7% | 5 | 1.5% | 6 | 2.4% | 8 |
≥7 | 1.4% | 4 | 2.4% | 9 | 1.2% | 4 |
100% | 296 | 100% | 393 | 100% | 336 | |
Median # episodes (IQR) | 1 (1–2) | 1 (1–2) | 1 (1–2.5) | |||
Mean # episodes (SD | 1.9 (1.4) | 1.9 (1.6) | 1.9 (1.4) | |||