Table 3.

Temporal trends in SARS-CoV-2 infection prevention behaviours among pregnant women and new mothers between June 2020 and December 2021 in Sweden

OR (time) [95% CI]		OR (time2) [95% CI]	P-value (time)	P-value (time2)
Keeping distance from others both indoors and outdoors
12.43 [8.80–17.56.80.56]		0.59 [0.55–0.63]	< 0.001	< 0.001
Limiting social contacts
65.44 [45.72–93.67]		0.41 [0.39–0.44]	< 0.001	< 0.001
Avoiding using public transportation
10.12 [7.83–13.08]		0.62 [0.59-0.59-65]	< 0.001	< 0.001
Staying home when symptoms of a cold
2.48 [1.62–3.78]		0.92 [0.84–1.01]	< 0.001	0.068
Avoiding group activities for children
4.16 [3.42–5.06]		0.73 [0.70–076]	< 0.001	< 0.001
Keeping the child home from daycare when mild symptoms
1.35 [1.11–1.65]		0.97 [0.93–1.01]	0.003	0.138

Logistic regression trend analysis with linear (time) and quadratic (time²) terms. The linear term represents the overall trend in adherence, while the quadratic term captures non-linear changes over time. Odds ratios (ORs) > 1 for the linear term indicate an overall increase in adherence, whereas ORs < 1 for the quadratic term indicate a subsequent decline