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Table 1 Socio-demographic status of the respondents

From: The acceptance and willingness to pay (WTP) for hypothetical dengue vaccine in Penang, Malaysia: a contingent valuation study

Characteristics  
Questionnaire, n (%)
 Set A 213 (53.3)
 Set B 187 (46.7)
Age (years), mean (SD) 33 (12.0)
Gender, n (%)
 Male 159 (39.7)
 Female 241 (60.3)
Ethnicity, n (%)
 Malay 208 (52.0)
 Chinese 128 (32.0)
 Indian 49 (12.3)
 Others 15 (3.7)
Marital status, n (%)
 Single 178 (44.5)
 Married 208 (52.0)
 Divorced 6 (1.5)
 Widow/widower 8 (2.0)
Do you have children?, n (%)
 No 217 (54.3)
 Yes 183 (45.7)
Education level (ISCED 2011 level), n (%)
 0 4 (1.0)
 1 25 (6.3)
 2 83 (20.7)
 3 53 (13.3)
 > 4 235 (58.7)
Occupation sector, n (%)
 Unemployed 38 (9.5)
 Pensioner 16 (4.0)
 Student 106 (26.5)
 Government 107 (26.7)
 Private/Self-employed 133 (33.3)
 Monthly household income, n (%)
 ≤ MYR 1,000 88 (22.0)
 MYR 1,001–2000 62 (15.5)
 MYR 2,001–3,000 76 (19.0)
 MYR 3,001–4,000 72 (18.0)
 MYR 4,001–5,000 40 (10.0)
 ≥ MYR 5,001 62 (15.5)
Previous experience with dengue, n (%)
 No 158 (39.5)
 Yes 242 (60.5)
Duration of interview (minutes), mean (SD) 9.0 (3.0)
Difficulty of the questionnaire, n (%)
 Very difficult 21 (5.3)
 Difficult 41 (10.3)
 Neutral 136 (34.0)
 Easy 151 (37.7)
 Very easy 51 (12.7)
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