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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%)