Table 2.

Digital measurements for all observers i.e., intra-observer, interobserver results and intraclass correlation

Patient	Measurements	Mean	SD	SD (pat)	SD (error)	SD (doc)	ICC	ICC*	Dif*	P value**
1	Ac index Rt (DDH)	25.48	5.51	5.04	2.57	0.97	0.77	0.78	0.65	0.376
2	Ac index Lt (DDH)	25.53	6.35	6.11	2.56	0.00	0.85	0.84	−0.17	0.755
3	Ac index Rt (CP)	20.13	5.52	4.78	2.96	1.12	0.69	0.72	1.88	0.0205
4	Ac index Lt (CP)	18.20	6.02	5.36	3.18	0.27	0.74	0.73	1.17	0.0512
5	CE angle Rt (CP)	27.91	8.81	7.08	5.04	2.92	0.60	0.60	−1.31	0.2041
6	CE angle Lt (CP)	30.79	10.70	9.61	4.81	3.08	0.74	0.72	1.76	0.1754
7	Reimer’s index Rt (CP)	26.36	18.68	17.75	7.91	1.04	0.83	0.80	−0.70	0.6205
8	Reimer’s index Lt (CP)	18.67	11.65	11.69	3.31	1.03	0.92	0.92	−2.42	0.0163
9	Femur length Rt (LLD)	280.01	58.22	58.71	15.78	4.57	0.93	0.92	5.78	0.0454
10	Femur length Lt (LLD)	278.99	65.87	67.21	15.15	4.65	0.95	0.94	6.22	0.0133
11	Tibia length Rt (LLD)	226.06	61.21	61.62	17.30	3.02	0.92	0.91	4.26	0.0653
12	Tibia length Lt (LLD)	227.42	64.12	65.65	14.00	3.61	0.95	0.95	4.43	0.0354
13	mLDFA Rt (LLD)	87.54	4.73	3.89	2.93	0.29	0.63	0.62	−0.01	0.9866
14	mLDFA Lt (LLD)	93.43	12.77	13.07	2.81	0.59	0.95	0.95	0.92	0.0618
15	mMPTA Rt (LLD)	85.95	3.59	3.08	2.05	0.20	0.69	0.70	0.6	0.1846
16	mMPTA Lt (LLD)	88.94	5.07	4.77	2.20	0.49	0.82	0.81	0.7	0.0324
17	Cobb Angle AP (scoliosis)	31.15	17.80	17.86	5.60	1.01	0.91	0.91	2.64	0.0055
18	Cobb angle Lat (scoliosis)	40.15	18.41	16.22	8.48	5.95	0.71	0.68	−7.31	0.0345

* Difference to measurements without the “expert”

* ICC without the “expert”

** P values for comparing the all observers to without “expert” averages