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Table 3 Extent of under-reporting (%) by age and sex in each THS

From: Under-reporting of inpatient services utilisation in household surveys – a population-based study in Hong Kong

  1999 2001 2002
  No. of persons discharged from public hospitals in past 6 months* No. of persons discharged from public hospitals in past 6 months* No. of persons discharged from public hospitals in past 12 months*
Age (years)
Less than 5 44.6% 51.8% 65.0%
5 – 24 36.2% 40.9% 38.2%
25 – 44 31.6% 31.9% 37.6%
45 – 64 27.3% 28.6% 38.0%
65 or above 25.7% 32.2% 31.7%
Sex
Female 34.7% 36.3% 39.4%
Male 26.1% 31.4% 36.8%
Overall 30.7% 34.1% 38.2%
F-test for the overall demographic subgroups differences within each year (at significance level 0.05)
Age difference
Including the 'less than 5' age group (p-value) 0.47 0.18 0.02
Excluding the 'less than 5' age group (p-value) 0.53 0.28 0.60
Sex difference(p-value) 0.04 0.23 0.10
  1. * Adjusted for non-residents and deceased patients as at 31 Oct 1999, 30 Apr 2001 and 30 June 2002 respectively for the 3 rounds of THS
  2. where a i = ad min istrative data, b i = survey data, for each demographic subgroup i up to k.