Table 5 Point estimates
From: A choice experiment assessment of stated early response to COVID-19 vaccines in the USA
Variable | Cond. logit 1 | RPL 1 | Cond. logit 2 | RPL 2 |
|---|---|---|---|---|
Preferences: β | ||||
Free | NA | NA | 0.4116*** | 0.5126*** |
Cost [$] | -0.0043*** | -0.0047*** | -0.0030*** | -0.0030*** |
Effectiveness [%] | 0.0102*** | 0.0111*** | 0.0110*** | 0.0122*** |
Protection [months] | 0.0311*** | 0.0319*** | 0.0319*** | 0.0331*** |
Incubation [days] | -0.0120*** | -0.0111*** | -0.0078*** | -0.0056* |
Severe side effects [out of 106] | -0.0024*** | -0.0027*** | -0.0026*** | -0.0029*** |
Mild side effects [out of 10] | -0.0355*** | -0.0515*** | -0.0486*** | -0.0623*** |
Introduced [months] | 0.0340*** | 0.0282*** | 0.0497*** | 0.0459*** |
Origin (base: Germany) | ||||
USA | 0.2687*** | 0.4327*** | 0.3105*** | 0.4721*** |
UK | 0.1587** | 0.2527*** | 0.1900*** | 0.3350*** |
China | -0.3132*** | -0.3046*** | -0.1938*** | -0.1291** |
Recommends (base: PCP) | ||||
Media | -0.3864*** | -0.5599*** | -0.4618*** | -0.6660*** |
CDC | -0.0286 | -0.0415 | -0.0471 | -0.1476** |
WHO | -0.0648 | -0.2166*** | -0.1401*** | -0.3281*** |
Heterogeneity: Î | ||||
Cost × Income ≥ $120K | 0.0024*** | 0.0024*** | 0.0024*** | 0.0024*** |
Effectiveness × Wave 2 | 0.0030*** | 0.0022*** | 0.0030*** | 0.0022*** |
China × Republican | -0.1629*** | -0.2017*** | -0.1628*** | -0.2051*** |
Opt-out: γ | ||||
Opt-out constant (mean) | 1.0540*** | 0.6720*** | 0.7983*** | 0.3572* |
Opt-out constant (st.dev.) | 3.2605*** | 3.2693*** | ||
Male | -0.6604*** | -1.4286*** | -0.6611*** | -1.4326*** |
Household Income [$10K] | -0.0172*** | -0.0557*** | -0.0173*** | -0.0559*** |
Education BSc | -0.1492*** | -0.3383*** | -0.1467*** | -0.3345*** |
Education Postgraduate | -0.6764*** | -1.5117*** | -0.6765*** | -1.5143*** |
Age | 0.0257*** | 0.0571*** | 0.0257*** | 0.0573*** |
Black or African American | 0.3006*** | 0.7639*** | 0.3026*** | 0.7665*** |
Hispanic | -0.0123 | 0.0445 | -0.0103 | 0.0462 |
Asian or Asian American | 0.0833 | 0.3388** | 0.0797 | 0.3339** |
Religion extremely important | -0.1637*** | -0.4939*** | -0.1631*** | -0.4938*** |
Democrat | -0.5340*** | -1.1452*** | -0.5356*** | -1.1516*** |
Tested for COVID-19 | -0.1395*** | -0.3627*** | -0.1394*** | -0.3637*** |
Had COVID-19 | -0.3353*** | -0.2013 | -0.3394*** | -0.2049 |
No health insurance | 0.1962*** | 0.5062*** | 0.1989*** | 0.5111*** |
Had flu shot | -0.5152*** | -1.0224*** | -0.5164*** | -1.0262*** |
Against vaccination | 1.7706*** | 4.1637*** | 1.7707*** | 4.1708*** |
Older than 65 in household | -0.2380*** | -0.4946*** | -0.2380*** | -0.4951*** |
BMI | -0.0095*** | -0.0200*** | -0.0095*** | -0.0200*** |
Underlying condition | -0.3240*** | -0.6834*** | -0.3229*** | -0.6832*** |
Works full time | -0.4177*** | -0.9344*** | -0.4197*** | -0.9382*** |
Loglikelihood | -18425.00 | -15219.00 | -18385.00 | -15219.00 |
BIC | 37205.10 | 30802.81 | 37134.60 | 30714.34 |