Table 2: Patient demographics and clinical characteristics.

Jidabokuippo groupNSAIDs groupP value

Age (years)60 (16–90)66 (23–90)0.2553
Gender (male : female)35 : 4637 : 440.8744
The number of rib fractures (single : multiple)74 : 775 : 6>0.9999
(bilateral, 2)(bilateral, 0)
Site of rib fracturesUpper (1st–4th) 5Upper (1st–4th) 50.3620
Middle (5th–8th) 34Middle (5th–8th) 43
Lower (9th–12th) 46Lower (9th–12th) 37
Injury severity score1 (1–10)1 (1–13)0.8050
Chest AIS score1 (1–3)1 (1–3)0.7390
Accompanying injuries460.7441
Hemothorax 2
Pneumohemothorax 1
Whiplash injury 3Pneumothorax 1
Kidney contusion 1Clavicular fracture 2
Whiplash injury 1
Comorbidities19 (23.5%)18 (22.2%)>0.9999

ISS: injury severity score; AIS: abbreviated injury scale; NSAIDs: nonsteroidal anti-inflammatory drugs.