LS variable metadata
Variable: OPINAIM
Table: IDMI
Short description: Operation indicator for weeks preceding infant/foetal death
Full description:  
Coding notes: 1971-1975:
Blank - not coded.
1976-1985:
1= operation within last 4 weeks for assigned cause
2= operation within last 4 weeks for other cause
space= No operation in last 4 weeks
1986-1992:
Codes 1, 2 and additional codes:
3= operation on infant
4 = operation on mother
5 = operation on infant and mother
Space = no operation, non-neonatal death
Note: Codes 1 and 2 apply to non-neonatal deaths, Codes 3,4 and 5 apply to neonatal deaths
1993 onwards:
Blank - not coded.
Notes:  
Units of measurement:  
Source: Draft entry for deaths (Form 310): Question 8.
Former name of variable:  
Derived: N
Derivation: Not available
Subject:  
Date range: From: 19760101  
Keyword: Mortality
Classification:  
Comparable variables for other individuals:  
Comparable variables for other times:  
Restricted: N
Data type: Text
Length of field: 1
Reference 1: See LS Technical Volume (Hattersley and Creeser, 1995) page 343 (neonatal death certificate), page 25, pp. 101-104 (comparability of data), page 108 and pp. 117-121 (data quality).