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Table 2 EN-INDEPTH survey questions for gestational age and method of administering these questions

From: Gestational age data completeness, quality and validity in population-based surveys: EN-INDEPTH study

Standard questions in DHS-7

New/modified questions asked on GA in EN-INDEPTH

Question

Details

Question

Details

Probing, calculation at data collector’s end, and recording

‘How many months pregnant were you when that pregnancy ended?’

Only asked for non-livebirths. Asked in additional questions on non-livebirths after the roster (section 2).

‘How many months did this pregnancy last?’

Asked for all births and pregnancy losses in FBH+ and FPH in roster.

Acceptable range 0-11. Red error message shown if value outside range entered.

- Probed when women could not spontaneously report.

- GA was recorded in completed months, e.g. a reported GA of 9 months 2 weeks was recorded as 9 months.

‘How many weeks pregnant were you when xxx was born?’

Asked for all last neonatal deaths and stillbirths since the 1st Jan 2012, and subset of surviving livebirths in section 4.

Acceptable range 0-45. Red error message shown if value outside range entered.

Data were collected from health cards (ANC card, maternal card or others) where it was available to women, else from recall.

- Most women reported GA in months. Then they were asked whether it was exactly the reported complete months, or the pregnancy lasted few more days/weeks, or that ended few days/weeks before the reported month.

- Women’s reported GAs in months were converted into weeks and recorded in completed weeks at interview.

- Months and fraction of months (in days/weeks) reported after complete months were converted to weeks considering 30 days month in Matlab.

- Bandim site did not probe. When women replied ‘don’t know’ the response was recorded as such.

‘Was xxx born before expected?

Asked for all last neonatal deaths and stillbirths since the 1st Jan 2012 and subset of surviving livebirths in section 4.

Responses coded—Yes/No/Don’t Know.

Those responding ‘Yes’ were asked:

‘How many weeks was xxx born before the expected date of delivery?’

Response—numeric integer. Option to report in months if weeks are not known.

- Probed when women could not spontaneously report

- Recorded in completed weeks

- Recorded ‘0’ for < 7 days

- For months, recorded as the women reported