Table 7. Absolute difference of estimates by year difference, season, geographical level, and sample size.
| DHS/MICS vs NGO | DHS vs DHS | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Variable | N | Mean | SD | Median | IQR | N | Mean | SD | Median | IQR |
| Year difference | ||||||||||
| ≤1 year | 495 | 11.6 | 10.4 | 9.2 | 12.6 | 56185 | 10.1 | 10.2 | 6.9 | 11.7 |
| 1.5-3 years | 860 | 12.8 | 12.8 | 8.4 | 15.9 | 8024 | 9.3 | 9.1 | 6.6 | 10.7 |
| ≥3.5 years | 641 | 13.8 | 13.2 | 10.1 | 15.1 | 45042 | 13.6 | 13.9 | 9.2 | 15.3 |
| Season | ||||||||||
| Same season | 1153 | 13.1 | 12.8 | 9.0 | 14.4 | - | - | - | - | - |
| Different season | 603 | 11.8 | 11.2 | 8.5 | 14.6 | - | - | - | - | - |
| Season unknown | 240 | 14.2 | 13.0 | 10.3 | 16.2 | - | - | - | - | - |
| Geographical level difference | ||||||||||
| 0 | 677 | 12.5 | 12.6 | 8.3 | 14.2 | 9024 | 10.1 | 11.5 | 6.2 | 11.4 |
| 1 | 897 | 13.1 | 12.3 | 9.6 | 15.4 | 30275 | 10.5 | 10.9 | 7.1 | 11.9 |
| 2+ | 422 | 12.8 | 12.2 | 9.0 | 14.9 | 69952 | 12.1 | 12.4 | 8.2 | 13.8 |
| Geographical level 1 a , b | ||||||||||
| Country | 14 | 7.7 | 7.7 | 3.9 | 6.1 | 61230 | 11.9 | 12.2 | 8.1 | 13.7 |
| Region | 1259 | 13.1 | 12.9 | 9.0 | 15.9 | 25248 | 10.9 | 12.2 | 7.0 | 12.0 |
| Province | 723 | 12.4 | 11.4 | 9.3 | 13.4 | 22773 | 10.8 | 10.8 | 7.5 | 12.6 |
| Geographical level 2 c , d | ||||||||||
| Country | 14 | 7.7 | 7.7 | 3.9 | 6.1 | 896 | 7.0 | 8.7 | 3.9 | 7.2 |
| Region | 369 | 12.6 | 12.2 | 8.7 | 14.2 | 8826 | 11.3 | 13.1 | 7.1 | 12.7 |
| Province | 422 | 12.5 | 12.4 | 9.0 | 13.7 | 30875 | 9.1 | 9.7 | 5.9 | 10.1 |
| District | 963 | 13.0 | 12.3 | 9.3 | 15.2 | 68654 | 12.6 | 12.6 | 8.8 | 14.5 |
| Village | 228 | 13.5 | 13.3 | 8.6 | 17.6 | - | - | - | - | - |
| Sample size 1 a , b | ||||||||||
| Tertile 1 (n a =335, n b =709) | 663 | 14.1 | 13.1 | 9.8 | 16.6 | 36418 | 11.5 | 12.1 | 7.8 | 12.6 |
| Tertile 2 | 656 | 12.9 | 12.4 | 9.3 | 15.0 | 36695 | 11.2 | 11.7 | 7.5 | 12.9 |
| Tertile 3 (n a =772, n b =5282) | 677 | 11.6 | 11.5 | 8.2 | 13.3 | 36138 | 11.7 | 12.1 | 7.8 | 13.8 |
| Sample size 2 c , d | ||||||||||
| Tertile 1 (n c =236, n d =37) | 664 | 14.8 | 13.7 | 10.4 | 17.5 | 36480 | 13.7 | 13.0 | 10.0 | 14.9 |
| Tertile 2 | 668 | 12.0 | 12.0 | 8.1 | 14.0 | 36407 | 11.7 | 11.9 | 8.0 | 13.1 |
| Tertile 3 (n c =757, n d =104) | 664 | 11.7 | 11.1 | 8.7 | 13.4 | 36364 | 9.0 | 10.4 | 5.4 | 10.3 |
a
For the DHS/MICS - NGO comparison, refers to the DHS/MICS data.
b
For the DHS - DHS comparison, refers to the DHS data from the higher geographical level and earlier survey year.
c
For the DHS/MICS - NGO comparison, refers to the NGO data.
d
For the DHS - DHS comparison, refers to the data mimicking the NGO (from the lower geographical level and more recent survey year).
DHS: Demographic and Health Surveys; MICS: Multiple Indicator Cluster Surveys; NGO: non-governmental organization.