The effect of tonsillectomy with adenoidectomy on medical services used in association with otitis media based on Korean national sample cohort data

Table 2 The number of medical services used in association with otitis media

Age in 2005	Period before or after T&A	3 years before	2 years before	1 year before	1 year after	2 years after	3 years after	4 years after	5 years after	6 years after	7 years after	8 years after
Total	Non-T&A (B)	0.86	1.16	1.23	0.70	0.47	0.66	0.51	0.35	0.26	0.24	0.22
	T&A (A)	1.02	1.16	1.26	0.81	0.52	0.89	0.79	0.40	0.37	0.11	0.15
	Difference(A-B)	0.16	0.00	0.03	0.11	0.05	0.24	0.28	0.06	0.12	−0.13	−0.07
	P value	0.269	0.992	0.863	0.445	0.630	0.258	0.198	0.631	0.300	0.010	0.331
3-4 years old	Non-T&A (B)	1.03	1.74	2.77	1.54	1.09	2.36	0.89	0.54	0.31	0.04	0.21
	T&A (A)	1.27	1.87	2.53	1.80	0.80	1.00	1.00	0.67	0.47	0.07	0.53
	Difference(A-B)	0.24	0.12	−0.24	0.26	−0.29	−1.36	0.11	0.12	0.15	0.02	0.32
	P value	0.758	0.875	0.803	0.767	0.420	0.157	0.899	0.861	0.632	0.697	0.299
5-6 years old	Non-T&A (B)	1.03	1.54	1.57	1.05	0.65	0.81	0.67	0.40	0.37	0.30	0.24
	T&A (A)	1.26	1.49	1.58	1.16	0.71	1.18	1.08	0.38	0.53	0.17	0.06
	Difference (A-B)	0.23	−0.05	0.01	0.11	0.06	0.37	0.40	−0.02	0.16	−0.13	−0.19
	P value	0.379	0.885	0.973	0.728	0.774	0.341	0.397	0.894	0.468	0.182	0.002
7-8 years old	Non-T&A (B)	0.89	1.02	0.99	0.36	0.25	0.37	0.36	0.29	0.18	0.27	0.23
	T&A (A)	0.77	1.07	0.83	0.41	0.36	0.96	0.87	0.52	0.30	0.07	0.23
	Difference(A-B)	−0.12	0.05	−0.17	0.05	0.11	0.58	0.51	0.23	0.13	−0.20	0.01
	P value	0.530	0.867	0.550	0.703	0.560	0.116	0.080	0.288	0.406	0.035	0.975
9-10 years old	Non-T&A (B)	0.43	0.48	0.46	0.30	0.25	0.27	0.30	0.27	0.13	0.14	0.18
	T&A (A)	0.86	0.47	0.90	0.45	0.31	0.24	0.08	0.20	0.14	0.06	0.08
	Difference(A-B)	0.43	−0.01	0.43	0.15	0.06	−0.03	−0.21	−0.07	0.01	−0.08	−0.09
	P value	0.122	0.972	0.253	0.387	0.719	0.890	0.069	0.731	0.880	0.200	0.405

ISSN: 1478-7547