(a)  

Testing sites	Geomin rotated factor loadings
	1	2	3	4
Abdomen, right upper	0.832*	0.009	0.046	−0.049
Abdomen, right middle	0.827*	0.025	−0.070	0.071
Abdomen, right lower	0.636*	−0.020	−0.036	0.165
Abdomen, midline, pubis	0.737*	0.017	0.163	−0.123
Abdomen, midline, lower 1/3	0.841*	−0.016	0.145	−0.109
Abdomen, midline, umbilicus	0.791*	−0.012	0.002	0.079
Abdomen, midline, upper 1/3	0.724*	−0.010	0.015	0.062
Abdomen, left upper	0.863*	0.010	−0.009	−0.030
Abdomen, left middle	0.804*	−0.009	−0.033	0.107
Abdomen, left lower	0.678*	−0.006	−0.060	0.234
Latissimus dorsi, left	0.714*	0.015	0.109	−0.101
Latissimus dorsi, right	0.599*	0.017	0.157	0.059
Inguinal ligament, right	0.560*	0.043	−0.009	0.157
Inguinal ligament, left	0.546*	−0.009	0.013	0.240
Vulva 12:00	−0.050	0.781*	0.024	−0.015
Vulva 2:00	0.098	0.769*	−0.079	0.031
Vulva 4:00	−0.045	0.748*	0.004	0.058
Vulva 6:00	−0.006	0.703*	0.150	−0.021
Vulva 8:00	−0.003	0.767*	0.172*	−0.084
Vulva 10:00	0.024	0.800*	−0.022	0.101
Puborectalis, right	0.033	0.123*	0.691*	0.048
Iliococcygeus, right	0.001	0.088	0.690*	0.071
Obdurator internus, right	0.022	−0.121*	0.688*	0.241*
Puborectalis, left	0.066	0.055	0.809*	−0.082
Iliococcygeus, left	−0.027	0.058	0.721*	0.067
Obdurator internus, left	−0.028	−0.033	0.659*	0.266*
Uterosacral ligament, right	0.009	−0.037	0.185	0.682*
Uterosacral ligament, left	0.052	0.185*	0.081	0.617*
Adnexal, right	0.073	0.084	0.101	0.635*
Adnexal, left	0.004	0.088	0.054	0.730*

^ψFactor loadings greater than |0.3| are in bold in the above table.

*Factor loadings are significant at α = 0.05.