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. 2021 Sep 28;2021(9):CD009790. doi: 10.1002/14651858.CD009790.pub2

Comparison 3. SUBGROUP ANALYSES (Symptom duration).

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
3.1 Pain (/100): Earliest follow‐up; Exercise vs. no treatment or usual care 35 2746 Mean Difference (IV, Random, 95% CI) ‐15.20 [‐18.24, ‐12.16]
3.1.1 Moderate duration of symptoms (12 weeks ‐ 3 years) 8 523 Mean Difference (IV, Random, 95% CI) ‐16.41 [‐22.55, ‐10.26]
3.1.2 Long duration of symptoms (> 3 years) 13 1318 Mean Difference (IV, Random, 95% CI) ‐8.54 [‐11.05, ‐6.02]
3.1.3 Duration of chronic symptoms not specified 14 905 Mean Difference (IV, Random, 95% CI) ‐21.55 [‐26.57, ‐16.52]
3.2 Pain (/100): Earliest follow‐up; Exercise vs. other conservative treatment 64 6295 Mean Difference (IV, Random, 95% CI) ‐9.10 [‐12.63, ‐5.58]
3.2.1 Moderate duration of symptoms (12 weeks ‐ 3 years) 17 1555 Mean Difference (IV, Random, 95% CI) ‐10.57 [‐18.12, ‐3.03]
3.2.2 Long duration of symptoms (> 3 years) 17 2094 Mean Difference (IV, Random, 95% CI) ‐6.75 [‐11.68, ‐1.82]
3.2.3 Duration of chronic symptoms not specified 30 2646 Mean Difference (IV, Random, 95% CI) ‐9.46 [‐14.22, ‐4.70]
3.3 Function (/100): Earliest follow‐up; Exercise vs. no treatment or usual care 38 2942 Mean Difference (IV, Random, 95% CI) ‐6.82 [‐8.32, ‐5.32]
3.3.1 Moderate duration of symptoms (12 weeks ‐ 3 years) 8 543 Mean Difference (IV, Random, 95% CI) ‐4.74 [‐7.08, ‐2.41]
3.3.2 Long duration of symptoms (> 3 years) 13 1295 Mean Difference (IV, Random, 95% CI) ‐5.58 [‐7.41, ‐3.74]
3.3.3 Duration of chronic symptoms not specified 17 1104 Mean Difference (IV, Random, 95% CI) ‐8.50 [‐11.44, ‐5.56]
3.4 Function (/100): Earliest follow‐up; Exercise vs. other conservative treatment 52 6004 Mean Difference (IV, Random, 95% CI) ‐4.11 [‐5.98, ‐2.24]
3.4.1 Moderate duration of symptoms (12 weeks ‐ 3 years) 15 1736 Mean Difference (IV, Random, 95% CI) ‐4.80 [‐7.78, ‐1.81]
3.4.2 Long duration of symptoms (>3 years) 15 2076 Mean Difference (IV, Random, 95% CI) ‐4.87 [‐8.52, ‐1.23]
3.4.3 Duration of chronic symptoms not specified 22 2192 Mean Difference (IV, Random, 95% CI) ‐3.00 [‐6.20, 0.20]