Psychometric Properties of Sinhala Version of Short-Form McGill Pain Questionnaire-2 (SF MPQ-2-Sin) among Patients with Cancer Pain in Sri Lanka

Table 2

Factor structures and loadings of 22 items in SF MPQ-2.

Item	Extraction method: fixed number of factors
	Factor 1	Factor 2	Factor 3	Factor 4
Throbbing pain	−0.758	0.065	0.067	0.210
Gnawing pain	−0.567	0.068	−0.063	−0.087
Aching pain	−0.722	−0.025	0.003	−0.147
Cramping pain	−0.568	−0.274	−0.023	−0.038
Heavy pain	−0.782	−0.072	−0.043	0.009
Tender	−0.743	0.082	0.061	−0.035
Shooting pain	−0.036	0.720	−0.019	−0.024
Stabbing pain	0.064	0.738	0.108	0.021
Sharp pain	0.025	0.785	0.055	−0.142
Piercing	0.046	0.712	−0.030	0.010
Electric shock pain	−0.047	0.706	−0.140	0.078
Splitting pain	−0.035	0.713	0.031	0.033
Tiring, exhausting	−0.038	0.048	0.703	−0.053
Sickening	−0.059	−0.024	0.780	−0.063
Fearful	0.051	−0.046	0.843	0.062
Punishing, cruel	0.038	0.009	0.814	0.075
Cold freezing	−0.047	0.021	0.046	0.700
Numbness	−0.127	−0.031	−0.065	0.809
Hot burning pain	0.064	−0.029	0.089	0.673
Itching	0.077	−0.130	0.010	0.669
Tingling or “pins and needles”	0.065	−0.014	−0.045	0.693
Pain caused by light touch	0.027	0.167	−0.025	0.500
Eigen values	3.921	3.094	2.493	2.271
% of variance	17.824	14.065	11.330	10.324
Total %	53.54%