Table 1. List of Non Steroidal Anti-inflammatory Drugs (NSAIDs) included in the study grouped by pharmacological class.

Pharmacological class	ATC class code	Name	ATC code
Acetic acid derivative	M01AB	Indomethacin	M01AB01
		Aceclofenac	M01AB16
		Diclofenac combinations	M01AB55
		Sulindac	M01AB02
		Diclofenac	M01AB05
Butylpyrazolidine	M01AA	Phenylbutazone	M01AA01
Coxibs	M01AH	Valdecoxib	M01AH03
		Rofecoxib	M01AH02
		Celecoxib	M01AH01
		Etoricoxib	M01AH05
Fenamate	M01AG	Tolfenamic	M01AG02
Oxicam	M01AC	Tenoxicam	M01AC02
		Meloxicam	M01AC06
		Piroxicam	M01AC01
Propionic acid derivatives	M01AE	Dexibuprofen	M01AE14
		Tiaprofenic acid	M01AE11
		Flurbiprofen	M01AE09
		Ketoprofen	M01AE03
		Naproxen	M01AE02
		Ibuprofen	M01AE01
Others	M01AX01	Nabumetone	M01AX01