Fig. 1From: Acute pain in the prehospital setting: a register-based study of 41.241 patientsFlow diagram of included patients. Definition of pain on a numeric rating scale (NRS, 0–10) or 4-point verbal rating scale (VRS-4) upon initial patient triage. No or mild pain: NRS < 4 or less than moderate on VRS-4. Moderate to severe pain: NRS ≥ 4 or at least moderate on VRS-4Back to article page