Table 1. Attrition table: patient... | American Society of Hematology

Table 1.

Attrition table: patient identification

Step	Description	2007	2008	2009	2010	2011	2012	2013	2014	2015	All*
A	Patients with 1+ Dx† in each ID year	1297	1966	2375	2501	3036	3181	3090	3265	2827	23 538
B	Of A, patients with 1+ inpatient or 2+ outpatient Dx† in each ID year	681	1113	1369	1456	1828	1915	1894	1932	1612	13 800
C	Of B, patients with 1+ treatment‡ since the first Dx†	374	601	753	847	1027	1086	1072	1068	830	7 658
D	Of C, patients with age ≥18 y (prevalent cases)	368	595	741	837	1021	1080	1063	1061	825	7 591‡
E	Of D, patients with at least 1 y of continuous enrollment prior to the first Dx† date in each ID year (1 January 2008 to 31 December 2014)	n/a	407	566	616	757	925	911	905	733	5 820
F	Of E, patients with no Dx† in 1 y prior to the 1st Dx† date in ID year (incident cases)	n/a	213	252	245	295	377	339	297	189	2 207

Step	Description	2007	2008	2009	2010	2011	2012	2013	2014	2015	All*
A	Patients with 1+ Dx† in each ID year	1297	1966	2375	2501	3036	3181	3090	3265	2827	23 538
B	Of A, patients with 1+ inpatient or 2+ outpatient Dx† in each ID year	681	1113	1369	1456	1828	1915	1894	1932	1612	13 800
C	Of B, patients with 1+ treatment‡ since the first Dx†	374	601	753	847	1027	1086	1072	1068	830	7 658
D	Of C, patients with age ≥18 y (prevalent cases)	368	595	741	837	1021	1080	1063	1061	825	7 591‡
E	Of D, patients with at least 1 y of continuous enrollment prior to the first Dx† date in each ID year (1 January 2008 to 31 December 2014)	n/a	407	566	616	757	925	911	905	733	5 820
F	Of E, patients with no Dx† in 1 y prior to the 1st Dx† date in ID year (incident cases)	n/a	213	252	245	295	377	339	297	189	2 207

Dx, diagnosis; ID, identification; n/a, not applicable.

Patients might be included in multiple years

†

International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM): 277.30, 277.39 or Tenth Revision (ICD-10-CM): E85.4x, E85.8x, E85.9x.

‡

A total of 4006 unique patients.

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