It is very uncertain whether late (seven days or more following birth) higher changes chronic lung disease compared with lower sodium intake (very low certainty).
It is very uncertain whether late (seven days or more following birth) higher changes mortality (latest time reported up to hospital discharge) compared with lower sodium intake (very low certainty).
Early (less than seven days following birth) higher showed no clear difference in mortality (latest time reported up to hospital discharge) compared with lower sodium intake (low certainty).
Early (less than seven days following birth) higher showed no clear difference in hyponatraemia (< 130 mmol/L) compared with lower sodium intake (low certainty).
Early (less than seven days following birth) higher showed no clear difference in hypernatraemia (≥ 150 mmol/L) compared with lower sodium intake (low certainty).
It is very uncertain whether early (less than seven days following birth) higher changes necrotising enterocolitis compared with lower sodium intake (very low certainty).
Higher‐dose showed no clear difference in smoking cessation ‐ 42/44 mg versus 21/22 mg (24‐hour patches) compared with lower‐dose nicotine patch (moderate certainty).
Higher‐dose showed no clear difference in overall SAEs ‐ 42/44 mg versus 21/22 mg (24 hr patches) compared with lower‐dose nicotine patch (low certainty).
Higher‐dose may leads to higher treatment withdrawals ‐ 42/44 mg versus 21/22 mg (24‐hour patches) compared with lower‐dose nicotine patch (low certainty).
Higher‐dose showed no clear difference in treatment withdrawals ‐ 21 mg versus 14 mg (24‐hour patches) compared with lower‐dose nicotine patch (low certainty).
It is very uncertain whether higher dose changes deaths compared with lower dose (very low certainty).
It is very uncertain whether higher dose changes intermediate syndrome compared with lower dose (very low certainty).
It is very uncertain whether higher dose changes ventilated compared with lower dose (very low certainty).