. 2022 Oct 12;118(2):317–326. doi: 10.1111/add.16056

TABLE 3.

Relationship of cannabis use status to SARS‐CoV‐2 infection

Time‐changing cannabis use status	Adjusted hazard ratio (95% confidence intervals)
Time‐changing cannabis use status	Model 1 ^a	Model 2 ^b
Current	0.61 (0.50, 0.74)^*	0.60 (0.49, 0.74)^*
Recently quit	0.92 (0.82, 1.03)	0.96 (0.86, 1.08)
Non‐user	1.00 (reference)	1.00 (reference)

Outcome was the first positive SARS‐CoV‐2 polymerase chain reaction test during pregnancy.

^{^a}

Model 1 is adjusted for age (21 categories: < 19, one for each year of age up to 39, 40+), race/ethnicity, neighborhood deprivation index, insurance payor and primary Kaiser Permanente Northern California (KPNC) facility.

^{^b}

Model 2 is adjusted for all covariables in model 1 one plus body mass index, pre‐existing diabetes and hypertension, parity and tobacco smoking status.

Significant at P ≤ 0.05.