Table 3.

Comparative analysis among correlation coefficients and temperature variations for the countries having at least 50, 100, and 1000 COVID-19 cases.

Total case ≥	Cases per million				Total cases				Active cases
	1	50	100	1000	1	50	100	1000	1	50	100	1000
25th March, 2020
Total country	198	112	91	31	198	112	91	31	198	112	91	31
Pearson	−0.47	−0.41	−0.43	−0.42	−0.54	−0.31	−0.28	−0.19	−0.54	−0.31	−0.29	−0.18
Spearman	−0.47	−0.40	−0.43	−0.31	−0.54	−0.30	−0.24	−0.10	−0.54	−0.31	−0.26	−0.10
Kendall	−0.32	−0.28	−0.29	−0.22	−0.37	−0.20	−0.15	−0.08	−0.37	−0.20	−0.16	−0.05
Temperature mean	17.84	13.71	12.86	8.98	17.84	13.71	12.86	8.98	17.84	13.71	12.86	8.98
Temperature median	21.00	12.75	12.00	6.50	21.00	12.75	12.00	6.50	21.00	12.75	12.00	6.50
Temperature SD	9.81	9.41	8.86	6.45	9.81	9.41	8.86	6.45	9.81	9.41	8.86	6.45
30th March, 2020
Total country	200	123	110	43	200	123	110	43	200	123	110	43
Pearson	−0.48	−0.42	−0.44	−0.55	−0.53	−0.37	−0.34	−0.32	−0.53	−0.38	−0.34	−0.31
Spearman	−0.49	−0.41	−0.44	−0.46	−0.54	−0.38	−0.34	−0.24	−0.55	−0.39	−0.35	−0.25
Kendall	−0.34	−0.28	−0.31	−0.32	−0.37	−0.25	−0.22	−0.14	−0.37	−0.26	−0.23	−0.15
Temperature mean	17.86	14.31	13.70	10.97	17.86	14.31	13.70	10.97	17.86	14.31	13.70	10.97
Temperature median	21.00	13.90	13.00	8.00	21.00	13.90	13.00	8.00	21.00	13.90	13.00	8.00
Temperature SD	9.78	9.41	9.39	8.88	9.78	9.41	9.39	8.88	9.78	9.41	9.39	8.88
6th April, 2020
Total country	200	137	125	61	200	137	125	61	200	137	125	61
Pearson	−0.51	−0.55	−0.56	−0.56	−0.50	−0.41	−0.37	−0.28	−0.49	−0.41	−0.38	−0.29
Spearman	−0.50	−0.54	−0.55	−0.58	−0.49	−0.41	−0.38	−0.30	−0.49	−0.41	−0.38	−0.29
Kendall	−0.34	−0.38	−0.39	−0.40	−0.33	−0.28	−0.25	−0.18	−0.33	−0.28	−0.26	−0.17
Temperature mean	19.84	17.81	17.30	15.32	19.84	17.80	17.30	15.32	19.84	17.81	17.30	15.32
Temperature median	22.00	16.50	15.50	14.00	22.00	16.50	15.50	14.00	22.00	16.50	15.50	14.00
Temperature SD	8.00	7.96	7.96	7.53	8.00	7.96	7.96	7.53	8.00	7.96	7.96	7.53
12th April, 2020
Total country	200	146	130	71	200	146	130	71	200	146	130	71
Pearson	−0.50	−0.52	−0.56	−0.50	−0.47	−0.42	−0.37	−0.20	−0.45	−0.41	−0.36	−0.20
Spearman	−0.50	−0.53	−0.55	−0.51	−0.46	−0.42	−0.37	−0.15	−0.44	−0.41	−0.37	−0.17
Kendall	−0.34	−0.37	−0.38	−0.35	−0.31	−0.28	−0.24	−0.08	−0.31	−0.28	−0.24	−0.10
Temperature mean	19.84	18.21	17.54	15.25	19.84	18.21	17.54	15.25	19.84	18.21	17.54	15.25
Temperature median	22.00	17.25	16.00	13.50	22.00	17.25	16.00	13.50	22.00	17.25	16.00	13.50
Temperature SD	8.00	7.92	7.93	7.50	8.00	7.92	7.93	7.50	8.00	7.92	7.93	7.50
18th April, 2020
Total country	200	155	136	78	200	155	136	78	200	155	136	78
Pearson	−0.50	−0.54	−0.55	−0.48	−0.46	−0.45	−0.38	−0.18	−0.43	−0.42	−0.36	−0.16
Spearman	−0.50	−0.55	−0.57	−0.49	−0.45	−0.44	−0.38	−0.14	−0.42	−0.41	−0.36	−0.13
Kendall	−0.34	−0.38	−0.40	−0.35	−0.31	−0.30	−0.26	−0.08	−0.30	−0.28	−0.25	−0.08
Temperature mean	19.84	18.71	17.90	15.51	19.84	18.71	17.90	15.51	19.84	18.71	17.90	15.51
Temperature median	22.00	18.50	16.50	13.50	22.00	18.50	16.50	13.50	22.00	18.50	16.50	13.50
Temperature SD	8.00	7.98	7.97	7.69	8.00	7.98	7.97	7.69	8.00	7.98	7.97	7.69

Note: Karl Pearson correlation coefficient is calculated for log-linear data. Temperature is in °C. COVID-19, coronavirus disease 2019; SD, standard deviation.