Table 3.
Change in Google Search Volume Index (GSVI)a Values for Total Joint Arthroplasty–Related Search Terms, by April State Policy Responseb.
| Search Term | Change in GSVI Values Between Two Periods (January 1 – March 14; March 15 – May 9) |
P-value | ||
|---|---|---|---|---|
| All States (SD) | Statewide Shelter-in-Place (SD) | No Statewide Shelter-In-Place (SD) | ||
| “Knee replacement” | −6.39 (19.50) | −7.67 (19.31) | +0.50 (19.12) | .285619 |
| “Hip replacement” | −5.65 (14.01) | −5.93 (14.62) | −4.13 (9.97) | .744039 |
| “Orthopedic surgeon” | −1.98 (17.88) | −4.49 (15.17) | +11.50 (24.18) | .19865 |
a
The Google Search Volume Index (GSVI) is calculated by Google Trends by normalizing the volume of a search term against the total volume of searches within a specific period and region. (1-100 = low to high popularity).
b
State policy response defined as presence of a shelter-in-place warning in the month of April [41]. States with no statewide shelter-in-place orders include Iowa, North Dakota, South Dakota, Nebraska, Arkansas, Oklahoma, Wyoming, and South Carolina.