Table 4: Distribution of individual characteristics in the dataset matched using point-of-contact interactive record linkage (PIRL) compared with those matched using a purely automated probabilistic approach using the full algorithm, by match score threshold.
Abbreviations: HDSS - health and demographic sentinel surveillance
* Statistical differences tested for significance with chi-square (𝜒2) or Fisher's Exact tests
a This question was only given to individuals aged 15 years or older
b This question was only given to females between 15 and 49 years of age
c This question was only given to individuals between 5 and 25 years of age
| Automated: full algorithm | |||||||
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| PIRL match | Threshold=10%ile | Threshold=50%ile | Threshold=90%ile | ||||
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| Characteristic | n (%) | n (%) | p-value* | n (%) | p-value* | n (%) | p-value* |
| Total matched (PPV) | 2,612 | 2,612 (55.1) | 1,579 (70.3) | 292 (84.6) | |||
| Sex | |||||||
| Female | 2,061 (78.9) | 2,036 (78.0) | 0.4004 | 1,185 (75.1) | 0.0038 | 213 (73.0) | 0.0191 |
| Male | 551 (21.1) | 576 (22.1) | 394 (25.0) | 79 (27.1) | |||
| Age, in years | |||||||
| <5 | 125 (4.8) | 198 (7.6) | <0.0001 | 132 (8.4) | <0.0001 | 46 (15.8) | <0.0001 |
| 5-17 | 393 (15.1) | 464 (17.8) | 239 (15.2) | 35 (12.0) | |||
| 18-34 | 1,384 (53.0) | 1,301 (49.9) | 770 (48.8) | 125 (42.8) | |||
| 35-49 | 522 (20.0) | 433 (16.6) | 301 (19.1) | 68 (23.3) | |||
| 50-64 | 160 (6.1) | 162 (6.2) | 105 (6.7) | 15 (5.1) | |||
| 65+ | 28 (1.1) | 52 (2.0) | 30 (1.9) | 3 (1.0) | |||
| Village of residence | |||||||
| Kisesa | 999 (38.3) | 982 (37.6) | 0.9340 | 586 (37.1) | 0.8100 | 111 (38.0) | 0.3320 |
| Kanyama | 521 (20.0) | 529 (20.3) | 302 (19.1) | 46 (15.8) | |||
| Kitumba | 424 (16.2) | 444 (17.0) | 262 (16.6) | 48 (16.4) | |||
| Isangijo | 257 (9.8) | 258 (9.9) | 176 (11.2) | 39 (13.4) | |||
| Ihayabuyaga | 152 (5.8) | 138 (5.3) | 89 (5.6) | 21 (7.2) | |||
| Igekemaja | 141 (5.4) | 150 (5.7) | 94 (6.0) | 13 (4.5) | |||
| Welamasonga | 118 (4.5) | 111 (4.3) | 70 (4.4) | 14 (4.8) | |||
|
Marital status a | |||||||
| Never married | 362 (24.0) | 272 (24.1) | 0.9997 | 179 (22.5) | 0.4266 | 33 (22.3) | 0.6089 |
| Married once | 724 (48.0) | 540 (47.8) | 403 (50.6) | 72 (48.7) | |||
| Remarried | 175 (11.6) | 132 (11.7) | 99 (12.4) | 22 (14.9) | |||
| Separated/Widowed | 249 (16.5) | 187 (16.5) | 116 (14.6) | 21 (14.2) | |||
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Pregnant at last HDSS round b | |||||||
| No | 1,057 (95.7) | 758 (95.5) | 0.8425 | 529 (95.0) | 0.5292 | 101 (98.1) | 0.3094 |
| Yes | 48 (4.3) | 36 (4.5) | 28 (5.0) | 2 (1.9) | |||
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Enrolled in school at last HDSS round c | |||||||
| No | 378 (72.0) | 282 (67.6) | 0.1454 | 185 (68.3) | 0.2725 | 25 (52.1) | 0.0038 |
| Yes | 147 (28.0) | 135 (32.4) | 86 (31.7) | 23 (47.9) | |||