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NIDS

National Income Dynamics Study 2010-2011, Wave 2

South Africa, 2010 - 2011
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Reference ID
zaf-saldru-nids-2010-2011-v4.0.0
Producer(s)
Southern Africa Labour and Development Research Unit,
Collections
National Income Dynamics Study African Centre of Excellence for Inequality Research Southern Africa Labour and Development Research Unit
Metadata
DDI/XML JSON
Created on
Nov 24, 2013
Last modified
Jul 18, 2023
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d2 - Biological mother's age at death (w2_a_mthdtha)

Data file: Adult_W2_Anon_V4.0.0

Overview

Valid: 7439
Invalid: 14435
Type: Discrete
Decimal: 0
Width: 3
Range: -9 - 120
Format: Numeric

Questions and instructions

Categories
Value Category Cases
-9 Don't know 4316
19.7%
-8 Refused 90
0.4%
-5 Not Applicable 0
0%
-3 Missing 141
0.6%
-2 Not asked in Phase 2 732
3.3%
20 4
0%
21 2
0%
22 3
0%
23 3
0%
25 5
0%
26 3
0%
27 2
0%
28 3
0%
29 11
0.1%
30 23
0.1%
31 11
0.1%
32 23
0.1%
33 22
0.1%
34 23
0.1%
35 33
0.2%
36 35
0.2%
37 31
0.1%
38 40
0.2%
39 23
0.1%
40 42
0.2%
41 24
0.1%
42 47
0.2%
43 42
0.2%
44 29
0.1%
45 40
0.2%
46 33
0.2%
47 36
0.2%
48 44
0.2%
49 30
0.1%
50 56
0.3%
51 25
0.1%
52 49
0.2%
53 29
0.1%
54 34
0.2%
55 43
0.2%
56 39
0.2%
57 38
0.2%
58 44
0.2%
59 44
0.2%
60 71
0.3%
61 27
0.1%
62 45
0.2%
63 39
0.2%
64 33
0.2%
65 55
0.3%
66 19
0.1%
67 43
0.2%
68 34
0.2%
69 35
0.2%
70 59
0.3%
71 34
0.2%
72 53
0.2%
73 28
0.1%
74 29
0.1%
75 51
0.2%
76 31
0.1%
77 24
0.1%
78 31
0.1%
79 27
0.1%
80 46
0.2%
81 17
0.1%
82 30
0.1%
83 25
0.1%
84 23
0.1%
85 23
0.1%
86 21
0.1%
87 16
0.1%
88 21
0.1%
89 13
0.1%
90 14
0.1%
91 10
0%
92 12
0.1%
93 2
0%
94 13
0.1%
95 4
0%
96 3
0%
97 2
0%
98 7
0%
99 2
0%
100 5
0%
101 3
0%
102 1
0%
103 4
0%
104 3
0%
105 1
0%
106 1
0%
110 1
0%
120 1
0%
Sysmiss 14435
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
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