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Table 2 Response rates of data sources

From: Cost Analysis of the Dutch Obstetric System: low-risk nulliparous women preferring home or short-stay hospital birth - a prospective non-randomised controlled study

Data source

Response rate (n = 449)

Number of items imputed in base case analysis (%)

Cost diary week 16 -- 28

361 (80.4%)

68 (0.0004)

Cost diary week 29 -- 42

325 (72.4%)

49 (0.0003)

Cost diary delivery

307 (68.4%)

31 (0.002)

Cost diary week 1 -- 6 after delivery

309 (68.8%)

192 (0.001)

Questionnaire 2

344 (76.6%)

0 (0)

Questionnaire 3

319 (71.0%)

0 (0)

Birth registration forms

418 (93.1%)

0 (0)

Overall response rate complete cases

253 (56.3%)