Correction to: Dexketoprofen/tramadol 25 mg/75 mg: randomised double-blind trial in moderate-to-severe acute pain after abdominal hysterectomy.

CORRECTION: Following publication of the original article [1], the authors reported that additional file 10 contained a typing error in the table "Percentage of responders (≥50% max TOTPAR) over two, four, six and eight hours (single-dose phase) (ITT Population)". The table is to be read as follows.

RCT Entities:   Population Interventions Outcomes

Correction

Following publication of the original article [1], the authors reported that additional file 10 contained a typing error in the table “Percentage of responders (≥50% max TOTPAR) over two, four, six and eight hours (single-dose phase) (ITT Population)”. The table is to be read as follows:

TOTPAR: total pain relief; % max TOTPAR: percentage of the theoretical maximum possible TOTPAR; ITT: intention-to-treat; DKP/TRAM: dexketoprofen trometamol/tramadol hydrochloride 25 mg/75 mg; DKP: dexketoprofen trometamol 25 mg; TRAM: tramadol hydrochloride 100 mg; N: number of patients; n: number of patients with data. The ITT population included all patients randomised; response was defined as the achievement of at least 50% of the maximum possible TOTPAR within the respective treatment arm; TOTPAR was calculated as the time-weighted sum of the pain relief (PAR) scores; PAR was measured on a five-point verbal rating scale (VRS) (0 = none, 1 = slight, 2 = moderate, 3 = good, 4 = complete); the percentage of PAR responders was analysed using a chi-square test.

		DKP/TRAM(N = 152)	DKP (N = 151)	TRAM (N = 150)	Placebo (N = 153)
TOTPAR2	Responder, n (%)	91 (60)	69 (46)	58 (39)	50 (33)
	Non-Responder, n (%)	60 (40)	82 (54)	91 (61)	103 (67)
	Treatment comparisons p-value
	DKP/TRAM vs. DKP	0.011
	DKP/TRAM vs. TRAM	<0.001
	DKP vs. Placebo	0.020
	TRAM vs. Placebo	0.258
TOTPAR4	Responder, n (%)	99 (65)	80 (53)	65 (43)	49 (32)
	Non-Responder, n (%)	52 (34)	71 (47)	84 (56)	104 (68)
	Treatment comparisons p-value
	DKP/TRAM vs. DKP	0.026
	DKP/TRAM vs. TRAM	<0.001
	DKP vs. Placebo	<0.001
	TRAM vs. Placebo	0.038
TOTPAR6	Responder, n (%)	105 (69)	72 (48)	64 (43)	49 (32)
	Non-Responder, n (%)	46 (30)	79 (52)	85 (57)	104 (68)
	Treatment comparisons p-value
	DKP/TRAM vs. DKP	<0.001
	DKP/TRAM vs. TRAM	<0.001
	DKP vs. Placebo	0.005
	TRAM vs. Placebo	0.050
TOTPAR8	Responder, n (%)	100 (66)	72 (48)	66 (44)	47 (31)
	Non-Responder, n (%)	51 (34)	79 (52)	83 (55)	106 (69)
	Treatment comparisons p-value
	DKP/TRAM vs. DKP	0.001
	DKP/TRAM vs. TRAM	<0.001
	DKP vs. Placebo	0.002
	TRAM vs. Placebo	0.015