MESH

The MeSH (Medical Subject Headings) database contains subject authority records from the National Library of Medicine. This database is updated once a year.

The Library Corporation, Research Park, Inwood, WV 25428

Overall Statistics

Description	Maximum	Minimum	Average	Totals
Number of Records	-	-	-	641590
Characters per Record	5850	161	211	135838086
Characters per Field	1083	4	22	96509852
Fields per Record	143	6	6	4218146

Record Status (MARC Leader Position 05)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
New	n	641590	100.00	117873566	86.78

Record Type (MARC Leader Position 06)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
Unknown Code	[unprintable]	641590	100.00	117873566	86.78

Bibliographic Level (MARC Leader Position 07)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
Unknown Code	[unprintable]	641590	100.00	117873566	86.78

Control Type (MARC Leader Position 08)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
No Specified Type	[blank]	641590	100.00	117873566	86.78

Character Encoding (MARC Leader Position 09)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
UCS/Unicode	a	641590	100.00	117873566	86.78

Encoding Level (MARC Leader Position 17)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
Unknown Code	[unprintable]	641590	100.00	117873566	86.78

Descriptive Cataloging Form (MARC Leader Position 18)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
Non ISBD Form	[blank]	641590	100.00	117873566	86.78

Linked Record Requirement (MARC Leader Position 19)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
Related Record not Required	[blank]	641590	100.00	117873566	86.78

Modified Record (MARC 008 Position 38)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
Not modified	[blank]	641590	100.00	117873566	86.78

Cataloging Source (MARC 008 Position 39)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
Library of Congress	[blank]	641590	100.00	117873566	86.78

Target Audience (MARC 008 Position 22)

Description	MARC Code	Record Count	Percent of Records	File Space Consumed	Percent of File Space
Unknown or not spec.	[blank]	641590	100.00	117873566	86.78

Collection Age (MARC 008 Position 07-10)

Description	Record Count	Percent of Records	File Space Consumed	Percent of File Space
No Date	641590	100.00	117873566	86.78

Languages (MARC 008 Position 35-37)

Description	Record Count	Percent of Records	File Space Consumed	Percent of File Space
NOT CODED	641590	100.00	117873566	86.78

Census of MARC Fields Used in the Collection

Tag	Records with Tag	Repeated Fields	Max Length	Min Length	Average Length	Percent of Records	File Space Consumed	Percent of File Space
1	641590	-	20	7	13	100.00	8937021	6.58
3	641590	-	4	4	4	100.00	2566360	1.89
5	641590	-	16	16	16	100.00	10265440	7.56
8	641590	-	40	40	40	100.00	25663600	18.89
40	641590	-	14	14	14	100.00	8982260	6.61
60	6493	-	18	8	10	1.01	67549	0.05
72	29915	31399	77	6	30	4.66	1898473	1.40
73	74	-	365	12	130	0.01	9661	0.01
150	640138	-	134	6	36	99.77	23175177	17.06
151	1189	-	55	8	22	0.19	26900	0.02
155	187	-	60	7	19	0.03	3660	0.00
180	76	-	33	9	16	0.01	1265	0.00
360	67	-	96	31	39	0.01	2671	0.00
450	27177	195278	226	6	30	4.24	6872776	5.06
451	185	223	49	8	21	0.03	8918	0.01
455	129	88	67	8	23	0.02	4991	0.00
480	76	229	35	6	14	0.01	4469	0.00
550	6008	2880	76	6	21	0.94	192271	0.14
555	43	25	28	9	15	0.01	1025	0.00
667	12545	-	625	6	88	1.96	1107502	0.82
680	29801	5	1083	16	201	4.64	6018988	4.43
688	25966	-	947	6	26	4.05	698875	0.51

To learn more about ITS.MARC, please contact TLC at 1.800.325.7759 or email us at info@tlcdelivers.com.

Database Profiles