Validation of Maternal Report of Receipt of Iron-Folic Acid Supplementation during Antenatal Care in Rural Southern Nepal.

BACKGROUND: Coverage of iron-folic acid (IFA) supplementation is a key indicator for tracking programmatic progress within and across countries. However, the validity of maternal report of this information during household surveys has yet to be determined. OBJECTIVES: This study aimed to examine the validity of maternal recall of receipt of IFA supplementation during antenatal care (ANC) and factors associated with accuracy of maternal recall. METHODS: A longitudinal cohort design was employed. The direct observation of the IFA received during all ANC visits at the 5 study health posts served as the "gold standard" to the maternal report of IFA received during the postpartum interview. Individual-level validity was assessed by calculating indicator sensitivity, specificity, and AUC. The inflation factor (IF) measured population-level bias. A multivariable log-binomial model was used to assess factors associated with accurate recall. RESULTS: The majority (95.8%) of women were observed receiving IFA during pregnancy. Women overreported the number of IFA tablets received compared with what was observed during ANC visits (mean difference: 45 tablets). Maternal report of any IFA receipt was moderate (AUC = 0.60; 95% CI: 0.50, 0.71), and population bias was low (IF = 1.01). However, the individual-level validity was poor across the 7 IFA tablet count categories; the AUC for categories ranged from misleading to moderate. Driven by the trend of maternal overreport, the IF indicated that maternal report drastically underestimated the coverage of lower tablet categories and overestimated the coverage of higher tablet counts. Accuracy of maternal report was not associated with months since last ANC observation nor any maternal characteristics. CONCLUSIONS: Maternal report of the amount of IFA supplementation received during pregnancy produced extremely biased population coverage and performed poorly to moderately for individual-level validity. It is imperative to improve this indicator because it is used in global frameworks and national program planning.

Validation of maternal report of nutrition-related interventions and counselling during antenatal care in southern Nepal.

The delivery of nutrition-related interventions and counselling during antenatal care is critical for a healthy pregnancy for both mother and child. However, the accuracy of maternal reports of many of these services during household surveys has not yet been examined. Our objectives were to assess the validity of the maternal reports of 10 antenatal nutrition interventions, including counselling, and examine associates between maternal characteristics and accuracy. Maternal report of services received collected during a post-partum survey was compared to the gold standard, the direct observation of all women's antenatal care visits. Individual-level validity was assessed by calculating indicator sensitivity, specificity and area under the operating curve (AUC). The inflation factor (IF) measured population-level bias. For five indicators, the high true coverage limited our ability to assess the validity of the maternal reports. There were no indicators that had both high individual-level validity (AUC > 0.70) and low population bias (0.75 < IF < 1.25). Indicators with greater true coverage estimates had higher sensitivity and lower specificity estimates compared to those indicators with lower true coverage. There were no maternal characteristics associated with the accuracy of the report. Maternal report of antenatal nutrition-related interventions and counselling during household surveys was found to have variable validity across indicators. Additional research in settings with varying coverage levels should be considered to best inform antenatal care coverage measurement in household surveys.

Burden and Risk Factors for Coronavirus Infections in Infants in Rural Nepal.

Background: Knowledge of risk factors for symptomatic human coronavirus (HCoV) infections in children in community settings is limited. We estimated the disease burden and impact of birth-related, maternal, household, and seasonal factors on HCoV infections among children from birth to 6 months old in rural Nepal. Methods: Prospective, active, weekly surveillance for acute respiratory infections (ARIs) was conducted in infants over a period of 3 years during 2 consecutive, population-based randomized trials of maternal influenza immunization. Midnasal swabs were collected for acute respiratory symptoms and tested for HCoV and other viruses by reverse-transcription polymerase chain reaction. Association between HCoV incidence and potential risk factors was modeled using Poisson regression. Results: Overall, 282 of 3505 (8%) infants experienced an HCoV ARI within the first 6 months of life. HCoV incidence overall was 255.6 (95% confidence interval [CI], 227.3-286.5) per 1000 person-years, and was more than twice as high among nonneonates than among neonates (incidence rate ratio [IRR], 2.53; 95% CI, 1.52-4.21). HCoV ARI incidence was also positively associated with the number of children <5 years of age per room in a household (IRR, 1.13; 95% CI, 1.01-1.28). Of the 296 HCoV infections detected, 46% were coinfections with other respiratory viruses. While HCoVs were detected throughout the study period, seasonal variation was also observed, with incidence peaking in 2 winters (December-February) and 1 autumn (September-November). Conclusions: HCoV is associated with a substantial proportion of illnesses among young infants in rural Nepal. There is an increased risk of HCoV infection beyond the first month of life.

A cleaning and calibration method for the SpiroPro portable spirometer's pneumotachometer tube in a remote field study.

BACKGROUND: We developed a systematic method of cleaning and calibration-checking for the pneumotachometer tube of the SpiroPro portable spirometer; this method maximized spirometry accuracy in a population-based study in a remote area of Nepal. METHODS: We tested 10 factory-calibrated pneumotachometer tubes. Each use consisted of a full set of spirometry maneuvers, per the American Thoracic Society (ATS) spirometry criteria. RESULTS: The pneumotachometers remained accurate, per the ATS criteria, for 5-9 disinfections, but began to drift toward inaccuracy after the first disinfection. All the pneumotachometers had become inaccurate, per the ATS criteria, after 10 disinfections. CONCLUSIONS: In a remote field setting the SpiroPro pneumotachometer tube can be cleaned and reused 5-9 times before it becomes inaccurate per the ATS criteria. Rigorous rinsing in distilled water and repeated calibration checks, at various flows up to 12 L/s, are essential for precise and accurate spirometry with the SpiroPro. Reusing the SpiroPro pneumotachometer in a remote setting may impose measurement bias. Single use of SpiroPro pneumotachometers, albeit more costly, will provide better data.

Safety of neonatal skin cleansing in rural Nepal.

OBJECTIVE: A high proportion of deaths during the neonatal period are attributed to infections. Neonatal skin plays an important role in protecting the newborn from invasive pathogens. In preparation for a study of newborn skin cleansing with chlorhexidine in Nepal, we evaluated the feasibility, acceptability, and safety of the newborn cleansing procedure. STUDY DESIGN/SETTING: Observational pilot study of full-body cleansing of newborns in rural Nepal. METHODS: Thirty two newborn infants were wiped with commercially available non-antiseptic baby wipes. Pre and post-procedure axillary temperatures were recorded to estimate the impact of cleansing on body temperature. Skin aggravation, residual moisture, removal of vernix, and maternal satisfaction were assessed qualitatively. RESULTS: Body temperature of newborns decreased an average of 0.40 C (95% CI: 0.31 to 0.49 C, p < 0.0001) during the procedure. There was no evidence of skin aggravation, injury or removal of vernix, and mothers expressed satisfaction with the procedure. The procedure was simple and project workers were easily trained. CONCLUSION: Care must be taken to promptly wrap infants after skin cleansing procedures as slight temperature decrease was noted after the procedure. These pilot data indicate, however, that gentle cleansing of newborn skin poses minimal risk to infants. This procedure is safe and appropriate precautions can be taken to deliver safe skin antisepsis with chlorhexidine to infants in the community.