Table 2. Comparison of pain between the mefenamic acid and exercise group at baseline.

Pain	Mefenamic acid	Exercise	p-value
Pain intensity, cm	55.0±20.4 (49.82–60.24)	60.3±14.5 (56.55–63.96)	0.104
Pain duration, days	1.7±0.9 (1.43–1.90)	1.8±0.7 (1.60–1.96)	0.444
Severity of dysmenorrhea, n (%)			0.849
Moderate	41 (51.3)	39 (48.8)
Severe	20 (47.6)	22 (52.4)

Data given as mean ± SD and (95% confidence interval for mean) unless otherwise stated.