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. 2018 May 12;8(1):010605. doi: 10.7189/jogh.08.010605

Table 4.

Postnatal care validation results: Swaziland, Pooled Data Collection Rounds 2009-2012

Indicator Total Matched N* Observer Report: Prevalence of Intervention (%) Woman’s Self-Report: Prevalence of Intervention (%) Sensitivity (%) Specificity (%) Est. Survey Prev.† (%) IF‡ AUC (95% CI) Met AUC & IF?
Physical examination of the mother:
Blood pressure check
114
74.6
74.6
83.5 (73.9, 90.7)
51.7 (32.5, 70.6)
74.6
1.00
0.676 (0.58, 0.78)
No
Breast exam
117
72.6
74.4
86.2 (77.1, 92.7)
66.7 (47.2, 82.7)
71.7
0.99
0.764 (0.67, 0.86)
Yes
Examine abdomen
112
64.3
75.0
75.0 (64.4, 83.8)
67.9 (47.6, 84.1)
59.7
0.93
0.714 (0.61, 0.81)
Yes
Examine vagina
112
71.4
74.1
83.1 (73.3, 90.5)
62.1 (42.3, 79.3)
70.2
0.98
0.726 (0.63, 0.82)
Yes
Screen for cervical cancer
121
48.8
17.4
81.0 (58.1, 94.6)
58.0 (47.7, 67.8)
61.0
1.25
0.695 (0.60, 0.79)
No
Check anemia§
113
38.9
70.8
42.5 (31.5, 54.1)
69.7 (51.3, 84.4)
35.0
0.90
0.561 (0.46, 0.66)
No
Advice/screening on health risks for mother:
Ask about excessive bleeding
115
61.7
35.7
65.9 (49.4, 79.9)
40.5 (29.3, 52.6)
63.4
1.03
0.532 (0.44, 0.62)
No
Discuss danger signs after birth||
115
49.6
52.2
58.3 (44.9, 70.9)
60.0 (45.9, 73.0)
49.1
0.99
0.592 (0.50, 0.68)
No
Discuss STIs or HIV/AIDS
113
63.7
49.6
64.3 (50.4, 76.6)
36.8 (24.4, 50.7)
63.9
1.00
0.506 (0.42, 0.60)
No
Counseling on family planning/ return to fertility:
Discuss how soon after delivery a woman can get pregnant
170
25.9
50.6
32.6 (22.8, 43.5)
81 (70.9, 88.7)
22.5
0.87
0.568 (0.5, 0.63)
No
Discuss return to fertility
169
16.6
50.3
23.5 (15.0, 34.0)
90.5 (82.1, 95.8)
11.8
0.71
0.57 (0.51, 0.63)
No
Discuss benefits of birth spacing
190
35.3
66.3
42.1 (33.3, 51.2)
78.1 (66, 87.5)
29.0
0.82
0.601 (0.53, 0.67)
No
Discuss return to sexual activity
172
24.4
49.4
38.8 (28.4, 50.0)
89.7 (81.3, 95.2)
17.3
0.71
0.642 (0.58, 0.7)
No
Discuss family planning (FP) method (incl. natural methods)¶
189
78.8
69.8
78.0 (70, 84.8)
19.3 (10, 31.9)
78.6
1.00
0.487 (0.42, 0.55)
No
Receive any modern FP method**
217
65.0
74.2
79.5 (72.4, 85.5)
76.8 (63.6, 87)
59.8
0.92
0.781 (0.72, 0.85)
Yes
Explains advan/disadv of chosen FP method
231
41.1
46.8
53.7 (43.8, 63.3)
69.9 (61, 77.9)
39.8
0.97
0.618 (0.56, 0.68)
No
Postnatal care for newborn:
Discuss breastfeeding/feeding for baby
279
83.9
95.7
NA
NA
NA
NA
NA
NA
Examine baby (undressed)
118
92.4
80.5
95.8 (89.6, 98.8)
21.7 (7.5, 43.7)
94.5
1.02
0.588 (0.50, 0.68)
No
Weigh the baby
117
96.6
96.6
NA
NA
NA
NA
NA
NA
Immunize baby
309
87.1
81.2
93.2 (89.4, 96.0)
39.7 (27, 53.4)
89.0
1.02
0.664 (0.60, 0.73)
No
Gave information on baby’s sickness signs†† 166 59.0 67.5 60.7 (51.0, 69.8) 44.4 (30.9, 58.6) 58.6 0.99 0.526 (0.44, 0.61) No

NA – estimate suppressed due to low sample size (n <5 per cell of 2 by 2 table). Numbers in bold: Meets criteria for high individual level accuracy (AUC>0.70) and/or low population-level bias (0.75<IF<1.25). Numbers in italics: Meets criteria for moderate individual-level accuracy (0.60≤AUC≤0.70).

*Sample sizes vary by indicator as not all questions were asked in each survey round and due to participant non-response.

†Estimated survey prevalence calculated using equation: P × (SE + SP – 1) – (1 – SP), where P = Observed prevalence, SE = Sensitivity (proportion of true positives correctly classified by clients), SP = Specificity (proportion of true negatives correctly classified by clients).

‡Inflation Factor (IF) = Estimated survey-based prevalence / Observed prevalence.

§Anemia checked by referral for blood test or by checking woman’s pallor (examine finger nails or lower eyelid).

||Danger signs for mother include: foul smelling discharge, fever, bleeding, broken scars, painful nipples, painful breasts.

¶Natural family planning methods include abstinence and lactational amenorrhea.

**Modern methods include injectables, pill, IUD, implant, progestin-only (breastfeeding mothers), condom use and sterilization.

††Danger signs for baby include difficulties feeding, difficulties breathing, body feels hot/cold or jaundice.