Table 1. Correlation between dengue incidence rates and socio-economic or climate variables.
| Type | Variable | Rho* | p value | Category | Description |
|---|---|---|---|---|---|
| Climate | Mean temp | 0.619 | 0.0004 | temperature | Average mean temperature |
| Coldest quarter | 0.617 | 0.0005 | temperature | Average minimum temperature during the coldest quarter | |
| Coldest month | 0.608 | 0.0006 | temperature | Average minimum temperature during the coldest month | |
| Min temp | 0.586 | 0.0010 | temperature | Average minimum temperature | |
| Wettest quarter | 0.563 | 0.0018 | rainfall | Average daily rainfall during the wettest quarter | |
| Wettest month | 0.559 | 0.0020 | rainfall | Average daily rainfall during the wettest month | |
| Isothermality | -0.515 | 0.0051 | temperature range | Average of the difference between mean and minimum temperature, divided by mean temperature | |
| Warmest quarter | 0.508 | 0.0058 | temperature | Average minimum temperature during the warmest quarter | |
| Nb of days max temp 32°C JFM | -0.508 | 0.0058 | temperature range | Average number of days with maximal temperature exceeding 32°C in January, February and March | |
| Temp range | -0.491 | 0.0080 | temperature range | Average temperature range (difference between maximum and minimum temperature) | |
| Warmest month | 0.483 | 0.0093 | temperature | Average minimum temperature during the warmest month | |
| Rainfall | 0.473 | 0.0109 | rainfall | Average daily rainfall | |
| Nb of days rainfall 1 mm Jan | 0.419 | 0.0264 | rainfall | Average number of days with daily rainfall exceeding 1mm during January | |
| Nb of days rainfall 2 mm Jan | 0.408 | 0.0313 | rainfall | Average number of days with daily rainfall exceeding 2mm during January | |
| Driest month | 0.296 | 0.1262 | rainfall | Average daily rainfall during the driest month | |
| Nb of days max temp 30°C JFM | -0.202 | 0.3015 | temperature range | Average number of days with maximal temperature exceeding 30°C in January, February and March | |
| Driest quarter | 0.125 | 0.5265 | rainfall | Average daily rainfall during the driest quarters | |
| Max temp | -0.062 | 0.7548 | temperature | Average maximum temperature | |
| Nb of days max temp 28°C JFM | -0.007 | 0.9700 | temperature range | Average number of days with maximal temperature exceeding 28°C in January, February and March | |
| Altitude | dem | -0.186 | 0.3440 | Digital elevation model (altitude) | |
| Socio-economic | Activity unemployed | 0.759 | < 0.0001 | Activity | Percentage of unemployed people |
| Transport engine | -0.744 | < 0.0001 | Human movement | Percentage of people using a motorised vehicle to get around | |
| Nb people per household | 0.739 | < 0.0001 | Human density | Average number of people per premise | |
| Transport walk | 0.722 | < 0.0001 | Human movement | Percentage of people getting around by foot | |
| Activity employed | -0.708 | < 0.0001 | Activity | Percentage of people working (any occupational activity) | |
| No car | 0.704 | < 0.0001 | Human movement | Percentage of premises with no car | |
| Activity other non working | 0.648 | 0.0002 | Activity | Percentage of people that are unoccupied but are neither students nor retired | |
| Proportion tribal population | 0.632 | 0.0003 | Activity | Percentage of people living in a tribe | |
| Spc** agri | 0.597 | 0.0008 | Activity | Percentage of people working as farmers | |
| WC inside | -0.568 | 0.0016 | Housing | Percentage of premises with toilets inside | |
| Surf < 40 m2 | 0.568 | 0.0016 | Human density | Percentage of premises under 40 m2 | |
| House | -0.540 | 0.0030 | Housing | Percentage of premises that are houses | |
| Live in same commune 04 | 0.532 | 0.0036 | Human movement | Percentage of people living in the commune before 2004 | |
| Air conditioning | -0.528 | 0.0039 | Housing | Percentage of premises with at least one room with air conditioning | |
| Live in another commune 04 | -0.525 | 0.0042 | Human movement | Percentage of people living in another commune before 2004 | |
| Activity retired | -0.490 | 0.0081 | Activity | Percentage of retired people | |
| Electricity | -0.488 | 0.0084 | Housing | Percentage of premises with access to public electricity | |
| Spc** arti | -0.480 | 0.0097 | Activity | Percentage of people working as artisans | |
| Work other commune | -0.477 | 0.0103 | Human movement | Percentage of people employed in another commune | |
| Born NC | 0.475 | 0.0106 | Activity | Percentage of people born in New Caledonia | |
| Born France mainland | -0.470 | 0.0115 | Activity | Percentage of people born in France, mainland | |
| Born FP | -0.466 | 0.0125 | Activity | Percentage of people born in French Polynesia | |
| Concrete slab | -0.460 | 0.0139 | Housing | Percentage of premises built on a concrete slab | |
| Surf > 40 & < 120_m2 | -0.453 | 0.0154 | Human density | Percentage of premises between 40 m2 and 120 m2 | |
| Surf >120_m2 | -0.448 | 0.0169 | Human density | Percentage of premises over 120 m2 | |
| Born abroad | -0.433 | 0.0215 | Activity | Percentage of people born abroad | |
| Nb of rooms | -0.428 | 0.0230 | Human density | Average number of bedrooms per premise | |
| Hut | 0.387 | 0.0421 | Housing | Percentage of premises that are huts | |
| No bikes | 0.360 | 0.0599 | Human movement | Percentage of premises with no bicycle nor motorcycle | |
| Live France mainland 04 | -0.349 | 0.0685 | Human movement | Percentage of people living in the mainland of France before 2004 | |
| Individual water | 0.345 | 0.0722 | Housing | Percentage of premises using an individual watering place located outside | |
| Shed | 0.330 | 0.0866 | Housing | Percentage of premises that are temporary sheds | |
| Born WF | -0.305 | 0.1150 | Activity | Percentage of people born in Wallis and Futuna | |
| Tap water | -0.302 | 0.1179 | Housing | Percentage of premises with access to tap water | |
| Sector 1 | 0.262 | 0.1774 | Activity | Percentage of people employed in the primary sector (agriculture…) | |
| Main home | 0.258 | 0.1849 | Human movement | Percentage of premises that are the main home of a household | |
| Sector 2 | -0.244 | 0.2115 | Activity | Percentage of people employed in the secondary sector (industry. . .) | |
| Spc** executives | -0.233 | 0.2334 | Activity | Percentage of people working as managers or executives | |
| Spc** labour | -0.206 | 0.2926 | Activity | Percentage of people working as labour workers | |
| Live abroad 04 | -0.170 | 0.3861 | Human movement | Percentage of people living abroad before 2004 | |
| Transport public | 0.164 | 0.4037 | Human movement | Percentage of people using public transportation to get around | |
| Studying | 0.148 | 0.4529 | Activity | Percentage of people unoccupied and studying | |
| Activity undergraduate student | 0.148 | 0.4529 | Activity | Percentage of people registered in an undergraduate course | |
| Collective water | 0.132 | 0.5037 | Housing | Percentage of premises using collective watering places | |
| Sector 3 | 0.024 | 0.9015 | Activity | Percentage of people employed in the tertiary sector (sales, trade, services. . .) | |
| Spc** other | 0.024 | 0.9049 | Activity | Percentage of people working but not as farmers nor managers nor workmen nor artisans nor employees | |
| Spc** employee | 0.001 | 0.9958 | Activity | Percentage of people working as employees |
* Pearson correlation coefficient (Rho) with dengue mean (across epidemic years) annual incidence rates and associated p-value. Variables are sorted by category (socio-economic or climate) and by decreasing order of their absolute Pearson correlation coefficient. Variables selected for the multivariable modelling are in bold
** Spc = Socio-professional category