Table 6.

Post COVID-19 sequels that differentially reported at 28 days and 1 year after infection

Sequelae	Variables	Percentagea	χ2 p-value	Odds ratio	95% CI	p-value
Delta-infected group
Forgetfulness	Day 28	2.2%	0.001*	0.062	0.007–0.516	0.010*
	Year 1	26.5%
Hair loss	Day 28	0.0%	<0.001*	-	-	-
	Year 1	38.2%
Omicron-infected group
Cough	Day 28	29.3%	0.021*	4.552	1.168–17.734	0.029*
	Year 1	8.3%
Fatigue	Day 28	29.3%	0.007*	7.034	1.454–34.043	0.015*
	Year 1	5.6%
All participants
Forgetfulness at year 1	Delta	26.5%	0.044*	3.960	0.970–16.158	0.055
	Omicron	8.3%
Hair loss at year 1	Delta	38.2%	0.003*	6.810	1.731–26.782	0.006*
	Omicron	8.3%
	Male	10.3%	0.036*	0.249	0.064–0.972	0.045*
	Female	31.7%
Headache at year 1	Delta	11.8%	0.034*	-	-	-
	Omicron	0.0%
Joint pain at day 28	Age ≥ 60	12.9%	0.006*	-	-	-
	Age 18–59	0.0%
Forgetfulness at day 28	Male	0.0%	0.025*	-	-	-
	Female	12.2%
Joint pain at year 1	Male	0.0%	0.031*	-	-	-
	Female	14.6%
Adjusted odds ratio
Hair loss at year 1	Delta			8.678	2.055–36.652	0.003*
	Omicron
	Male			0.181	0.042–0.783	0.022*
	Female

a, Percentage of participants presented with the sequelae in each variable category; *, statistically significant at p ≤ 0.05