Table 1.

Demographic details and the statistical analysis of the cases included in this study.

	Number of vaccinated Healthcare workers	Symptomatic Post-vaccination infections	Percentage (95% confidence interval)	Statistical significance (p-value)
Total	28342	1438	5.07	–
			(4.82–5.34)
Type of vaccine administered (difference)			0.53
			(-0.52–1.41)
a)ChAdOx nCOV-19 (Recombinant)	26375 (93.05%)	1348	5.11
			(4.85–5.38)	0.3015
b)Whole virion inactivated Vero cell	1967	90	4.58
	(6.95%)		(3.69–5.59)
Post-vaccination symptomatic infection after one dose	5125	269	5.25	<0.001, Difference- (64.5–67.4%)
	(18.08%)		(4.65–5.89), p < 0.001
- Within 2weeks	–	46	17.0
- After 2 weeks	–	223	83.0
Post-vaccination symptomatic infection after two doses	23217	1169	5.04	<0.001, Difference (87.8–88.6%)
	(81.92%)		(4.76–5.32), P < 0.001
- Within 2 weeks		69	5.9
- After 2 weeks		1100	94.1
Post-vaccination symptomatic infection after two vs. one dose (difference)			0.21	0.5354
			(-0.44 to 0.91)
Sex (difference)			0.48
			(-0.32 to 0.99), RR = 1.0995
			(0.9941–1.2160)
a)Females	13362	712	5.33
	(47.14%)		(4.95–5.72)	0.0661
b)Males	14980	726	4.85
	(52.86%)		(4.51–5.20)
Average age (in years)	33.04	35.73	–	–
Age distribution (in years)
a)18-30	12767	544	4.26
b)31-40	9014	487	5.40
c)41-50	4893	267	5.46	<0.001
d)51-60	1446	111	7.68
e)61-70	188	26	13.83
f)71-80	34	3	8.82
Age groups (in years)
a)18-40	21781 (76.85%)	1031	4.73
b)41-60	6339	378	5.96	<0.001
	(22.37%)
c)61-80	222	29	13.06
	(0.78%)
Regional distribution				<0.001
a)Southern	15777	899	5.70
b)Central	589	31	5.26
c)Eastern	6331	210	3.31
d)Western	2694	157	5.82
e)Northern	2951	141	4.78
Category of Staff
a)Nursing	7760	448	5.77
b)Clinical	2256	153	6.78
c)Administration	5172	264	5.10	<0.001
d)Paramedical	3000	140	4.67
e)Support Staff	10154	433	4.26
Hospital ward admission	28342	80	0.28	–
ICU admission	28342	3	0.01	–
Deaths	28342	Nil	–	–